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Finding the Fourth Proportional to 344,257.20, 516,385.80 and 107,672.40

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Solution

The fourth proportional to 344,257.20, 516,385.80 and 107,672.40 is: 161,508.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,257.20 : 516,385.80 = 107,672.40 : x
  2. Step 2: Convert to fraction form
    344,257.20/516,385.80 = 107,672.40/x
  3. Step 3: Cross multiply
    344,257.20x = 516,385.80 × 107,672.40
  4. Step 4: Simplify right side
    344,257.20x = 55,600,498,411.92
  5. Step 5: Solve for x
    x = 55,600,498,411.92/344,257.20
  6. Step 6: Final answer
    x = 161,508.60

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1.5x scale

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.