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Finding the Fourth Proportional to 410,025.51, 615,034.62 and 129,542.76

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Solution

The fourth proportional to 410,025.51, 615,034.62 and 129,542.76 is: 194,312.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,025.51 : 615,034.62 = 129,542.76 : x
  2. Step 2: Convert to fraction form
    410,025.51/615,034.62 = 129,542.76/x
  3. Step 3: Cross multiply
    410,025.51x = 615,034.62 × 129,542.76
  4. Step 4: Simplify right side
    410,025.51x = 79,673,282,170.35
  5. Step 5: Solve for x
    x = 79,673,282,170.35/410,025.51
  6. Step 6: Final answer
    x = 194,312.99

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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.