Home / 238,538.82-329,184.05-129,643.77

Finding the Fourth Proportional to 238,538.82, 329,184.05 and 129,643.77

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Solution

The fourth proportional to 238,538.82, 329,184.05 and 129,643.77 is: 178,908.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,538.82 : 329,184.05 = 129,643.77 : x
  2. Step 2: Convert to fraction form
    238,538.82/329,184.05 = 129,643.77/x
  3. Step 3: Cross multiply
    238,538.82x = 329,184.05 × 129,643.77
  4. Step 4: Simplify right side
    238,538.82x = 42,676,659,803.85
  5. Step 5: Solve for x
    x = 42,676,659,803.85/238,538.82
  6. Step 6: Final answer
    x = 178,908.65

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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.