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Finding the Fourth Proportional to 253,305.20, 379,724.52 and 120,248.12

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Solution

The fourth proportional to 253,305.20, 379,724.52 and 120,248.12 is: 180,261.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,305.20 : 379,724.52 = 120,248.12 : x
  2. Step 2: Convert to fraction form
    253,305.20/379,724.52 = 120,248.12/x
  3. Step 3: Cross multiply
    253,305.20x = 379,724.52 × 120,248.12
  4. Step 4: Simplify right side
    253,305.20x = 45,661,159,647.90
  5. Step 5: Solve for x
    x = 45,661,159,647.90/253,305.20
  6. Step 6: Final answer
    x = 180,261.44

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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.