Home / 274,832.40-379,279.62-153,974.70

Finding the Fourth Proportional to 274,832.40, 379,279.62 and 153,974.70

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Solution

The fourth proportional to 274,832.40, 379,279.62 and 153,974.70 is: 212,491.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,832.40 : 379,279.62 = 153,974.70 : x
  2. Step 2: Convert to fraction form
    274,832.40/379,279.62 = 153,974.70/x
  3. Step 3: Cross multiply
    274,832.40x = 379,279.62 × 153,974.70
  4. Step 4: Simplify right side
    274,832.40x = 58,399,465,705.61
  5. Step 5: Solve for x
    x = 58,399,465,705.61/274,832.40
  6. Step 6: Final answer
    x = 212,491.20

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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.