Home / 238,553.40-329,206.28-129,657.72

Finding the Fourth Proportional to 238,553.40, 329,206.28 and 129,657.72

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Solution

The fourth proportional to 238,553.40, 329,206.28 and 129,657.72 is: 178,929.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,553.40 : 329,206.28 = 129,657.72 : x
  2. Step 2: Convert to fraction form
    238,553.40/329,206.28 = 129,657.72/x
  3. Step 3: Cross multiply
    238,553.40x = 329,206.28 × 129,657.72
  4. Step 4: Simplify right side
    238,553.40x = 42,684,135,674.48
  5. Step 5: Solve for x
    x = 42,684,135,674.48/238,553.40
  6. Step 6: Final answer
    x = 178,929.06

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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.