Home / 272,470.28-408,705.02-85,496.36

Finding the Fourth Proportional to 272,470.28, 408,705.02 and 85,496.36

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Solution

The fourth proportional to 272,470.28, 408,705.02 and 85,496.36 is: 128,244.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,470.28 : 408,705.02 = 85,496.36 : x
  2. Step 2: Convert to fraction form
    272,470.28/408,705.02 = 85,496.36/x
  3. Step 3: Cross multiply
    272,470.28x = 408,705.02 × 85,496.36
  4. Step 4: Simplify right side
    272,470.28x = 34,942,791,523.73
  5. Step 5: Solve for x
    x = 34,942,791,523.73/272,470.28
  6. Step 6: Final answer
    x = 128,244.41

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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.