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Finding the Fourth Proportional to 558,838.80, 838,193.40 and 159,541.20

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Solution

The fourth proportional to 558,838.80, 838,193.40 and 159,541.20 is: 239,293.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,838.80 : 838,193.40 = 159,541.20 : x
  2. Step 2: Convert to fraction form
    558,838.80/838,193.40 = 159,541.20/x
  3. Step 3: Cross multiply
    558,838.80x = 838,193.40 × 159,541.20
  4. Step 4: Simplify right side
    558,838.80x = 133,726,380,868.08
  5. Step 5: Solve for x
    x = 133,726,380,868.08/558,838.80
  6. Step 6: Final answer
    x = 239,293.30

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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.