Home / 238,192.31-328,705.70-129,296.57

Finding the Fourth Proportional to 238,192.31, 328,705.70 and 129,296.57

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Solution

The fourth proportional to 238,192.31, 328,705.70 and 129,296.57 is: 178,429.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,192.31 : 328,705.70 = 129,296.57 : x
  2. Step 2: Convert to fraction form
    238,192.31/328,705.70 = 129,296.57/x
  3. Step 3: Cross multiply
    238,192.31x = 328,705.70 × 129,296.57
  4. Step 4: Simplify right side
    238,192.31x = 42,500,519,724.73
  5. Step 5: Solve for x
    x = 42,500,519,724.73/238,192.31
  6. Step 6: Final answer
    x = 178,429.43

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1.5x scale

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.