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Finding the Fourth Proportional to 343,641.60, 516,076.80 and 250,252.80

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Solution

The fourth proportional to 343,641.60, 516,076.80 and 250,252.80 is: 375,826.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,641.60 : 516,076.80 = 250,252.80 : x
  2. Step 2: Convert to fraction form
    343,641.60/516,076.80 = 250,252.80/x
  3. Step 3: Cross multiply
    343,641.60x = 516,076.80 × 250,252.80
  4. Step 4: Simplify right side
    343,641.60x = 129,149,664,215.04
  5. Step 5: Solve for x
    x = 129,149,664,215.04/343,641.60
  6. Step 6: Final answer
    x = 375,826.63

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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.