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Finding the Fourth Proportional to 534.31, 737.51 and 347.47

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Solution

The fourth proportional to 534.31, 737.51 and 347.47 is: 479.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    534.31 : 737.51 = 347.47 : x
  2. Step 2: Convert to fraction form
    534.31/737.51 = 347.47/x
  3. Step 3: Cross multiply
    534.31x = 737.51 × 347.47
  4. Step 4: Simplify right side
    534.31x = 256,257.17
  5. Step 5: Solve for x
    x = 256,257.17/534.31
  6. Step 6: Final answer
    x = 479.61

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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.