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Finding the Fourth Proportional to 221,390.40, 332,245.16 and 88,193.60

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Solution

The fourth proportional to 221,390.40, 332,245.16 and 88,193.60 is: 132,353.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,390.40 : 332,245.16 = 88,193.60 : x
  2. Step 2: Convert to fraction form
    221,390.40/332,245.16 = 88,193.60/x
  3. Step 3: Cross multiply
    221,390.40x = 332,245.16 × 88,193.60
  4. Step 4: Simplify right side
    221,390.40x = 29,301,896,742.98
  5. Step 5: Solve for x
    x = 29,301,896,742.98/221,390.40
  6. Step 6: Final answer
    x = 132,353.96

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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.