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Finding the Fourth Proportional to 410,600.57, 615,922.72 and 130,139.69

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Solution

The fourth proportional to 410,600.57, 615,922.72 and 130,139.69 is: 195,216.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,600.57 : 615,922.72 = 130,139.69 : x
  2. Step 2: Convert to fraction form
    410,600.57/615,922.72 = 130,139.69/x
  3. Step 3: Cross multiply
    410,600.57x = 615,922.72 × 130,139.69
  4. Step 4: Simplify right side
    410,600.57x = 80,155,988,439.79
  5. Step 5: Solve for x
    x = 80,155,988,439.79/410,600.57
  6. Step 6: Final answer
    x = 195,216.46

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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.