Home / 238,149.88-328,644.04-129,254.42

Finding the Fourth Proportional to 238,149.88, 328,644.04 and 129,254.42

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Solution

The fourth proportional to 238,149.88, 328,644.04 and 129,254.42 is: 178,369.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,149.88 : 328,644.04 = 129,254.42 : x
  2. Step 2: Convert to fraction form
    238,149.88/328,644.04 = 129,254.42/x
  3. Step 3: Cross multiply
    238,149.88x = 328,644.04 × 129,254.42
  4. Step 4: Simplify right side
    238,149.88x = 42,478,694,776.66
  5. Step 5: Solve for x
    x = 42,478,694,776.66/238,149.88
  6. Step 6: Final answer
    x = 178,369.58

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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.