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Finding the Fourth Proportional to 529.69, 730.54 and 372.84

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Solution

The fourth proportional to 529.69, 730.54 and 372.84 is: 514.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    529.69 : 730.54 = 372.84 : x
  2. Step 2: Convert to fraction form
    529.69/730.54 = 372.84/x
  3. Step 3: Cross multiply
    529.69x = 730.54 × 372.84
  4. Step 4: Simplify right side
    529.69x = 272,374.98
  5. Step 5: Solve for x
    x = 272,374.98/529.69
  6. Step 6: Final answer
    x = 514.22

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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.