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Finding the Fourth Proportional to 502.17, 753.59 and 328.58

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Solution

The fourth proportional to 502.17, 753.59 and 328.58 is: 493.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    502.17 : 753.59 = 328.58 : x
  2. Step 2: Convert to fraction form
    502.17/753.59 = 328.58/x
  3. Step 3: Cross multiply
    502.17x = 753.59 × 328.58
  4. Step 4: Simplify right side
    502.17x = 247,614.60
  5. Step 5: Solve for x
    x = 247,614.60/502.17
  6. Step 6: Final answer
    x = 493.09

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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.