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Finding the Fourth Proportional to 384,294.59, 576,056.11 and 131,402.13

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Solution

The fourth proportional to 384,294.59, 576,056.11 and 131,402.13 is: 196,971.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,294.59 : 576,056.11 = 131,402.13 : x
  2. Step 2: Convert to fraction form
    384,294.59/576,056.11 = 131,402.13/x
  3. Step 3: Cross multiply
    384,294.59x = 576,056.11 × 131,402.13
  4. Step 4: Simplify right side
    384,294.59x = 75,694,997,386.38
  5. Step 5: Solve for x
    x = 75,694,997,386.38/384,294.59
  6. Step 6: Final answer
    x = 196,971.28

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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.