Home / 240,331.52-360,713.92-128,105.20

Finding the Fourth Proportional to 240,331.52, 360,713.92 and 128,105.20

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Solution

The fourth proportional to 240,331.52, 360,713.92 and 128,105.20 is: 192,273.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,331.52 : 360,713.92 = 128,105.20 : x
  2. Step 2: Convert to fraction form
    240,331.52/360,713.92 = 128,105.20/x
  3. Step 3: Cross multiply
    240,331.52x = 360,713.92 × 128,105.20
  4. Step 4: Simplify right side
    240,331.52x = 46,209,328,864.38
  5. Step 5: Solve for x
    x = 46,209,328,864.38/240,331.52
  6. Step 6: Final answer
    x = 192,273.28

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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.