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Finding the Fourth Proportional to 529.31, 793.68 and 356.18

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Solution

The fourth proportional to 529.31, 793.68 and 356.18 is: 534.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    529.31 : 793.68 = 356.18 : x
  2. Step 2: Convert to fraction form
    529.31/793.68 = 356.18/x
  3. Step 3: Cross multiply
    529.31x = 793.68 × 356.18
  4. Step 4: Simplify right side
    529.31x = 282,688.97
  5. Step 5: Solve for x
    x = 282,688.97/529.31
  6. Step 6: Final answer
    x = 534.08

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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.