Home / 558,765.92-838,279-159,412.16

Finding the Fourth Proportional to 558,765.92, 838,279 and 159,412.16

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Solution

The fourth proportional to 558,765.92, 838,279 and 159,412.16 is: 239,155.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,765.92 : 838,279 = 159,412.16 : x
  2. Step 2: Convert to fraction form
    558,765.92/838,279 = 159,412.16/x
  3. Step 3: Cross multiply
    558,765.92x = 838,279 × 159,412.16
  4. Step 4: Simplify right side
    558,765.92x = 133,631,866,072.64
  5. Step 5: Solve for x
    x = 133,631,866,072.64/558,765.92
  6. Step 6: Final answer
    x = 239,155.36

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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.