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Finding the Fourth Proportional to 221,244.20, 332,039.10 and 102,930.20

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Solution

The fourth proportional to 221,244.20, 332,039.10 and 102,930.20 is: 154,475.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,244.20 : 332,039.10 = 102,930.20 : x
  2. Step 2: Convert to fraction form
    221,244.20/332,039.10 = 102,930.20/x
  3. Step 3: Cross multiply
    221,244.20x = 332,039.10 × 102,930.20
  4. Step 4: Simplify right side
    221,244.20x = 34,176,850,970.82
  5. Step 5: Solve for x
    x = 34,176,850,970.82/221,244.20
  6. Step 6: Final answer
    x = 154,475.69

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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.