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Finding the Fourth Proportional to 221,549.44, 305,755.68 and 126,060.16

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Solution

The fourth proportional to 221,549.44, 305,755.68 and 126,060.16 is: 173,972.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,549.44 : 305,755.68 = 126,060.16 : x
  2. Step 2: Convert to fraction form
    221,549.44/305,755.68 = 126,060.16/x
  3. Step 3: Cross multiply
    221,549.44x = 305,755.68 × 126,060.16
  4. Step 4: Simplify right side
    221,549.44x = 38,543,609,941.71
  5. Step 5: Solve for x
    x = 38,543,609,941.71/221,549.44
  6. Step 6: Final answer
    x = 173,972.95

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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.