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Finding the Fourth Proportional to 604.76, 834.64 and 356.14

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Solution

The fourth proportional to 604.76, 834.64 and 356.14 is: 491.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    604.76 : 834.64 = 356.14 : x
  2. Step 2: Convert to fraction form
    604.76/834.64 = 356.14/x
  3. Step 3: Cross multiply
    604.76x = 834.64 × 356.14
  4. Step 4: Simplify right side
    604.76x = 297,246.91
  5. Step 5: Solve for x
    x = 297,246.91/604.76
  6. Step 6: Final answer
    x = 491.51

Related Problems

Find fourth proportional to 302.38, 417.32 and 178.07
Half scale
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Double scale
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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.