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Finding the Fourth Proportional to 274,891.20, 412,279.20 and 134,750.40

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Solution

The fourth proportional to 274,891.20, 412,279.20 and 134,750.40 is: 202,097.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,891.20 : 412,279.20 = 134,750.40 : x
  2. Step 2: Convert to fraction form
    274,891.20/412,279.20 = 134,750.40/x
  3. Step 3: Cross multiply
    274,891.20x = 412,279.20 × 134,750.40
  4. Step 4: Simplify right side
    274,891.20x = 55,554,787,111.68
  5. Step 5: Solve for x
    x = 55,554,787,111.68/274,891.20
  6. Step 6: Final answer
    x = 202,097.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.