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Finding the Fourth Proportional to 567.50, 851.86 and 477.18

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Solution

The fourth proportional to 567.50, 851.86 and 477.18 is: 716.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    567.50 : 851.86 = 477.18 : x
  2. Step 2: Convert to fraction form
    567.50/851.86 = 477.18/x
  3. Step 3: Cross multiply
    567.50x = 851.86 × 477.18
  4. Step 4: Simplify right side
    567.50x = 406,490.55
  5. Step 5: Solve for x
    x = 406,490.55/567.50
  6. Step 6: Final answer
    x = 716.28

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.