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Finding the Fourth Proportional to 535.17, 738.45 and 314.13

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Solution

The fourth proportional to 535.17, 738.45 and 314.13 is: 433.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    535.17 : 738.45 = 314.13 : x
  2. Step 2: Convert to fraction form
    535.17/738.45 = 314.13/x
  3. Step 3: Cross multiply
    535.17x = 738.45 × 314.13
  4. Step 4: Simplify right side
    535.17x = 231,969.30
  5. Step 5: Solve for x
    x = 231,969.30/535.17
  6. Step 6: Final answer
    x = 433.45

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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.