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Finding the Fourth Proportional to 542.07, 746.71 and 508.05

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Solution

The fourth proportional to 542.07, 746.71 and 508.05 is: 699.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    542.07 : 746.71 = 508.05 : x
  2. Step 2: Convert to fraction form
    542.07/746.71 = 508.05/x
  3. Step 3: Cross multiply
    542.07x = 746.71 × 508.05
  4. Step 4: Simplify right side
    542.07x = 379,366.02
  5. Step 5: Solve for x
    x = 379,366.02/542.07
  6. Step 6: Final answer
    x = 699.85

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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.