Home / 238,652.50-329,332.02-131,221.78

Finding the Fourth Proportional to 238,652.50, 329,332.02 and 131,221.78

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Solution

The fourth proportional to 238,652.50, 329,332.02 and 131,221.78 is: 181,081.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,652.50 : 329,332.02 = 131,221.78 : x
  2. Step 2: Convert to fraction form
    238,652.50/329,332.02 = 131,221.78/x
  3. Step 3: Cross multiply
    238,652.50x = 329,332.02 × 131,221.78
  4. Step 4: Simplify right side
    238,652.50x = 43,215,533,875.40
  5. Step 5: Solve for x
    x = 43,215,533,875.40/238,652.50
  6. Step 6: Final answer
    x = 181,081.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.