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Finding the Fourth Proportional to 529.52, 793.68 and 286.16

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Solution

The fourth proportional to 529.52, 793.68 and 286.16 is: 428.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    529.52 : 793.68 = 286.16 : x
  2. Step 2: Convert to fraction form
    529.52/793.68 = 286.16/x
  3. Step 3: Cross multiply
    529.52x = 793.68 × 286.16
  4. Step 4: Simplify right side
    529.52x = 227,119.47
  5. Step 5: Solve for x
    x = 227,119.47/529.52
  6. Step 6: Final answer
    x = 428.92

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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.