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Finding the Fourth Proportional to 558,976.80, 838,400.40 and 159,679.20

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Solution

The fourth proportional to 558,976.80, 838,400.40 and 159,679.20 is: 239,500.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,976.80 : 838,400.40 = 159,679.20 : x
  2. Step 2: Convert to fraction form
    558,976.80/838,400.40 = 159,679.20/x
  3. Step 3: Cross multiply
    558,976.80x = 838,400.40 × 159,679.20
  4. Step 4: Simplify right side
    558,976.80x = 133,875,105,151.68
  5. Step 5: Solve for x
    x = 133,875,105,151.68/558,976.80
  6. Step 6: Final answer
    x = 239,500.29

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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.