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Finding the Fourth Proportional to 558,874.77, 838,100.67 and 239,013.33

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Solution

The fourth proportional to 558,874.77, 838,100.67 and 239,013.33 is: 358,429.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,874.77 : 838,100.67 = 239,013.33 : x
  2. Step 2: Convert to fraction form
    558,874.77/838,100.67 = 239,013.33/x
  3. Step 3: Cross multiply
    558,874.77x = 838,100.67 × 239,013.33
  4. Step 4: Simplify right side
    558,874.77x = 200,317,232,011.93
  5. Step 5: Solve for x
    x = 200,317,232,011.93/558,874.77
  6. Step 6: Final answer
    x = 358,429.55

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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.