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Finding the Fourth Proportional to 221,833.57, 332,617.08 and 86,736.68

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Solution

The fourth proportional to 221,833.57, 332,617.08 and 86,736.68 is: 130,052.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,833.57 : 332,617.08 = 86,736.68 : x
  2. Step 2: Convert to fraction form
    221,833.57/332,617.08 = 86,736.68/x
  3. Step 3: Cross multiply
    221,833.57x = 332,617.08 × 86,736.68
  4. Step 4: Simplify right side
    221,833.57x = 28,850,101,230.49
  5. Step 5: Solve for x
    x = 28,850,101,230.49/221,833.57
  6. Step 6: Final answer
    x = 130,052.91

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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.