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Finding the Fourth Proportional to 650.76, 898.04 and 374.76

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Solution

The fourth proportional to 650.76, 898.04 and 374.76 is: 517.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    650.76 : 898.04 = 374.76 : x
  2. Step 2: Convert to fraction form
    650.76/898.04 = 374.76/x
  3. Step 3: Cross multiply
    650.76x = 898.04 × 374.76
  4. Step 4: Simplify right side
    650.76x = 336,549.47
  5. Step 5: Solve for x
    x = 336,549.47/650.76
  6. Step 6: Final answer
    x = 517.16

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Find fourth proportional to 325.38, 449.02 and 187.38
Half scale
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Double scale
Find fourth proportional to 651.76, 899.42 and 375.76
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.