Home / 238,536.43-329,182.82-129,640.77

Finding the Fourth Proportional to 238,536.43, 329,182.82 and 129,640.77

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Solution

The fourth proportional to 238,536.43, 329,182.82 and 129,640.77 is: 178,905.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,536.43 : 329,182.82 = 129,640.77 : x
  2. Step 2: Convert to fraction form
    238,536.43/329,182.82 = 129,640.77/x
  3. Step 3: Cross multiply
    238,536.43x = 329,182.82 × 129,640.77
  4. Step 4: Simplify right side
    238,536.43x = 42,675,513,520.13
  5. Step 5: Solve for x
    x = 42,675,513,520.13/238,536.43
  6. Step 6: Final answer
    x = 178,905.64

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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.