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Finding the Fourth Proportional to 410,515.12, 615,789.96 and 130,026.16

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Solution

The fourth proportional to 410,515.12, 615,789.96 and 130,026.16 is: 195,044.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,515.12 : 615,789.96 = 130,026.16 : x
  2. Step 2: Convert to fraction form
    410,515.12/615,789.96 = 130,026.16/x
  3. Step 3: Cross multiply
    410,515.12x = 615,789.96 × 130,026.16
  4. Step 4: Simplify right side
    410,515.12x = 80,068,803,865.35
  5. Step 5: Solve for x
    x = 80,068,803,865.35/410,515.12
  6. Step 6: Final answer
    x = 195,044.71

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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.