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Finding the Fourth Proportional to 531.56, 801.16 and 501.80

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Solution

The fourth proportional to 531.56, 801.16 and 501.80 is: 756.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    531.56 : 801.16 = 501.80 : x
  2. Step 2: Convert to fraction form
    531.56/801.16 = 501.80/x
  3. Step 3: Cross multiply
    531.56x = 801.16 × 501.80
  4. Step 4: Simplify right side
    531.56x = 402,016.83
  5. Step 5: Solve for x
    x = 402,016.83/531.56
  6. Step 6: Final answer
    x = 756.29

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.