Home / 238,928.20-329,721.12-131,506

Finding the Fourth Proportional to 238,928.20, 329,721.12 and 131,506

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Solution

The fourth proportional to 238,928.20, 329,721.12 and 131,506 is: 181,478.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,928.20 : 329,721.12 = 131,506 : x
  2. Step 2: Convert to fraction form
    238,928.20/329,721.12 = 131,506/x
  3. Step 3: Cross multiply
    238,928.20x = 329,721.12 × 131,506
  4. Step 4: Simplify right side
    238,928.20x = 43,360,305,606.72
  5. Step 5: Solve for x
    x = 43,360,305,606.72/238,928.20
  6. Step 6: Final answer
    x = 181,478.39

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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.