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Finding the Fourth Proportional to 410,053.20, 615,081.24 and 199,510.80

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Solution

The fourth proportional to 410,053.20, 615,081.24 and 199,510.80 is: 299,266.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,053.20 : 615,081.24 = 199,510.80 : x
  2. Step 2: Convert to fraction form
    410,053.20/615,081.24 = 199,510.80/x
  3. Step 3: Cross multiply
    410,053.20x = 615,081.24 × 199,510.80
  4. Step 4: Simplify right side
    410,053.20x = 122,715,350,257.39
  5. Step 5: Solve for x
    x = 122,715,350,257.39/410,053.20
  6. Step 6: Final answer
    x = 299,266.90

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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.