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Finding the Fourth Proportional to 468.68, 702.99 and 314.87

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Solution

The fourth proportional to 468.68, 702.99 and 314.87 is: 472.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    468.68 : 702.99 = 314.87 : x
  2. Step 2: Convert to fraction form
    468.68/702.99 = 314.87/x
  3. Step 3: Cross multiply
    468.68x = 702.99 × 314.87
  4. Step 4: Simplify right side
    468.68x = 221,346.95
  5. Step 5: Solve for x
    x = 221,346.95/468.68
  6. Step 6: Final answer
    x = 472.28

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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.