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Finding the Fourth Proportional to 221,716.60, 332,618.10 and 88,574.20

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Solution

The fourth proportional to 221,716.60, 332,618.10 and 88,574.20 is: 132,878.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,716.60 : 332,618.10 = 88,574.20 : x
  2. Step 2: Convert to fraction form
    221,716.60/332,618.10 = 88,574.20/x
  3. Step 3: Cross multiply
    221,716.60x = 332,618.10 × 88,574.20
  4. Step 4: Simplify right side
    221,716.60x = 29,461,382,113.02
  5. Step 5: Solve for x
    x = 29,461,382,113.02/221,716.60
  6. Step 6: Final answer
    x = 132,878.56

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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.