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Finding the Fourth Proportional to 381,108.49, 524,609.72 and 329,402.03

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Solution

The fourth proportional to 381,108.49, 524,609.72 and 329,402.03 is: 453,433.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,108.49 : 524,609.72 = 329,402.03 : x
  2. Step 2: Convert to fraction form
    381,108.49/524,609.72 = 329,402.03/x
  3. Step 3: Cross multiply
    381,108.49x = 524,609.72 × 329,402.03
  4. Step 4: Simplify right side
    381,108.49x = 172,807,506,725.73
  5. Step 5: Solve for x
    x = 172,807,506,725.73/381,108.49
  6. Step 6: Final answer
    x = 453,433.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.