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Finding the Fourth Proportional to 453,248.32, 679,872 and 215,871.04

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Solution

The fourth proportional to 453,248.32, 679,872 and 215,871.04 is: 323,806.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,248.32 : 679,872 = 215,871.04 : x
  2. Step 2: Convert to fraction form
    453,248.32/679,872 = 215,871.04/x
  3. Step 3: Cross multiply
    453,248.32x = 679,872 × 215,871.04
  4. Step 4: Simplify right side
    453,248.32x = 146,764,675,706.88
  5. Step 5: Solve for x
    x = 146,764,675,706.88/453,248.32
  6. Step 6: Final answer
    x = 323,806.33

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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.