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Finding the Fourth Proportional to 372,100.80, 558,151.20 and 119,380.80

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Solution

The fourth proportional to 372,100.80, 558,151.20 and 119,380.80 is: 179,071.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,100.80 : 558,151.20 = 119,380.80 : x
  2. Step 2: Convert to fraction form
    372,100.80/558,151.20 = 119,380.80/x
  3. Step 3: Cross multiply
    372,100.80x = 558,151.20 × 119,380.80
  4. Step 4: Simplify right side
    372,100.80x = 66,632,536,776.96
  5. Step 5: Solve for x
    x = 66,632,536,776.96/372,100.80
  6. Step 6: Final answer
    x = 179,071.20

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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.