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Finding the Fourth Proportional to 384,342.29, 575,880.85 and 131,484.56

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Solution

The fourth proportional to 384,342.29, 575,880.85 and 131,484.56 is: 197,010.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,342.29 : 575,880.85 = 131,484.56 : x
  2. Step 2: Convert to fraction form
    384,342.29/575,880.85 = 131,484.56/x
  3. Step 3: Cross multiply
    384,342.29x = 575,880.85 × 131,484.56
  4. Step 4: Simplify right side
    384,342.29x = 75,719,436,966.56
  5. Step 5: Solve for x
    x = 75,719,436,966.56/384,342.29
  6. Step 6: Final answer
    x = 197,010.42

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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.