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Finding the Fourth Proportional to 682.77, 942.22 and 372.27

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Solution

The fourth proportional to 682.77, 942.22 and 372.27 is: 513.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    682.77 : 942.22 = 372.27 : x
  2. Step 2: Convert to fraction form
    682.77/942.22 = 372.27/x
  3. Step 3: Cross multiply
    682.77x = 942.22 × 372.27
  4. Step 4: Simplify right side
    682.77x = 350,754.60
  5. Step 5: Solve for x
    x = 350,754.60/682.77
  6. Step 6: Final answer
    x = 513.73

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Find fourth proportional to 341.38, 471.11 and 186.13
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.