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Finding the Fourth Proportional to 221,500.10, 332,250.15 and 155,015.30

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Solution

The fourth proportional to 221,500.10, 332,250.15 and 155,015.30 is: 232,522.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,500.10 : 332,250.15 = 155,015.30 : x
  2. Step 2: Convert to fraction form
    221,500.10/332,250.15 = 155,015.30/x
  3. Step 3: Cross multiply
    221,500.10x = 332,250.15 × 155,015.30
  4. Step 4: Simplify right side
    221,500.10x = 51,503,856,677.30
  5. Step 5: Solve for x
    x = 51,503,856,677.30/221,500.10
  6. Step 6: Final answer
    x = 232,522.95

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1.5x scale

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.