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Finding the Fourth Proportional to 220,129.65, 303,780.06 and 124,654.95

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Solution

The fourth proportional to 220,129.65, 303,780.06 and 124,654.95 is: 172,024.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,129.65 : 303,780.06 = 124,654.95 : x
  2. Step 2: Convert to fraction form
    220,129.65/303,780.06 = 124,654.95/x
  3. Step 3: Cross multiply
    220,129.65x = 303,780.06 × 124,654.95
  4. Step 4: Simplify right side
    220,129.65x = 37,867,688,190.30
  5. Step 5: Solve for x
    x = 37,867,688,190.30/220,129.65
  6. Step 6: Final answer
    x = 172,024.48

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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.