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Finding the Fourth Proportional to 238,375.85, 328,878.43 and 134,995.95

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Solution

The fourth proportional to 238,375.85, 328,878.43 and 134,995.95 is: 186,248.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,375.85 : 328,878.43 = 134,995.95 : x
  2. Step 2: Convert to fraction form
    238,375.85/328,878.43 = 134,995.95/x
  3. Step 3: Cross multiply
    238,375.85x = 328,878.43 × 134,995.95
  4. Step 4: Simplify right side
    238,375.85x = 44,397,255,754.87
  5. Step 5: Solve for x
    x = 44,397,255,754.87/238,375.85
  6. Step 6: Final answer
    x = 186,248.97

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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.