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Finding the Fourth Proportional to 528.71, 792.15 and 374.37

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Solution

The fourth proportional to 528.71, 792.15 and 374.37 is: 560.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    528.71 : 792.15 = 374.37 : x
  2. Step 2: Convert to fraction form
    528.71/792.15 = 374.37/x
  3. Step 3: Cross multiply
    528.71x = 792.15 × 374.37
  4. Step 4: Simplify right side
    528.71x = 296,557.20
  5. Step 5: Solve for x
    x = 296,557.20/528.71
  6. Step 6: Final answer
    x = 560.91

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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.