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Finding the Fourth Proportional to 221,314.90, 332,080.35 and 102,925.30

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Solution

The fourth proportional to 221,314.90, 332,080.35 and 102,925.30 is: 154,438.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,314.90 : 332,080.35 = 102,925.30 : x
  2. Step 2: Convert to fraction form
    221,314.90/332,080.35 = 102,925.30/x
  3. Step 3: Cross multiply
    221,314.90x = 332,080.35 × 102,925.30
  4. Step 4: Simplify right side
    221,314.90x = 34,179,469,647.86
  5. Step 5: Solve for x
    x = 34,179,469,647.86/221,314.90
  6. Step 6: Final answer
    x = 154,438.18

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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.