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Finding the Fourth Proportional to 221,050.60, 331,575.90 and 73,306.60

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Solution

The fourth proportional to 221,050.60, 331,575.90 and 73,306.60 is: 109,959.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,050.60 : 331,575.90 = 73,306.60 : x
  2. Step 2: Convert to fraction form
    221,050.60/331,575.90 = 73,306.60/x
  3. Step 3: Cross multiply
    221,050.60x = 331,575.90 × 73,306.60
  4. Step 4: Simplify right side
    221,050.60x = 24,306,701,870.94
  5. Step 5: Solve for x
    x = 24,306,701,870.94/221,050.60
  6. Step 6: Final answer
    x = 109,959.90

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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.