Home / 239,227.20-358,889.40-81,471.60

Finding the Fourth Proportional to 239,227.20, 358,889.40 and 81,471.60

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Solution

The fourth proportional to 239,227.20, 358,889.40 and 81,471.60 is: 122,223.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,227.20 : 358,889.40 = 81,471.60 : x
  2. Step 2: Convert to fraction form
    239,227.20/358,889.40 = 81,471.60/x
  3. Step 3: Cross multiply
    239,227.20x = 358,889.40 × 81,471.60
  4. Step 4: Simplify right side
    239,227.20x = 29,239,293,641.04
  5. Step 5: Solve for x
    x = 29,239,293,641.04/239,227.20
  6. Step 6: Final answer
    x = 122,223.95

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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.