Home / 238,314.47-328,872.60-129,417.74

Finding the Fourth Proportional to 238,314.47, 328,872.60 and 129,417.74

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Solution

The fourth proportional to 238,314.47, 328,872.60 and 129,417.74 is: 178,595.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,314.47 : 328,872.60 = 129,417.74 : x
  2. Step 2: Convert to fraction form
    238,314.47/328,872.60 = 129,417.74/x
  3. Step 3: Cross multiply
    238,314.47x = 328,872.60 × 129,417.74
  4. Step 4: Simplify right side
    238,314.47x = 42,561,948,639.92
  5. Step 5: Solve for x
    x = 42,561,948,639.92/238,314.47
  6. Step 6: Final answer
    x = 178,595.74

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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.