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Finding the Fourth Proportional to 246,432.60, 340,081.92 and 138,981.60

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Solution

The fourth proportional to 246,432.60, 340,081.92 and 138,981.60 is: 191,797.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,432.60 : 340,081.92 = 138,981.60 : x
  2. Step 2: Convert to fraction form
    246,432.60/340,081.92 = 138,981.60/x
  3. Step 3: Cross multiply
    246,432.60x = 340,081.92 × 138,981.60
  4. Step 4: Simplify right side
    246,432.60x = 47,265,129,372.67
  5. Step 5: Solve for x
    x = 47,265,129,372.67/246,432.60
  6. Step 6: Final answer
    x = 191,797.39

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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.