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Finding the Fourth Proportional to 531.20, 795.12 and 314.08

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Solution

The fourth proportional to 531.20, 795.12 and 314.08 is: 470.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    531.20 : 795.12 = 314.08 : x
  2. Step 2: Convert to fraction form
    531.20/795.12 = 314.08/x
  3. Step 3: Cross multiply
    531.20x = 795.12 × 314.08
  4. Step 4: Simplify right side
    531.20x = 249,731.29
  5. Step 5: Solve for x
    x = 249,731.29/531.20
  6. Step 6: Final answer
    x = 470.13

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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.