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Finding the Fourth Proportional to 221,354.20, 332,204.10 and 103,040.20

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Solution

The fourth proportional to 221,354.20, 332,204.10 and 103,040.20 is: 154,640.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,354.20 : 332,204.10 = 103,040.20 : x
  2. Step 2: Convert to fraction form
    221,354.20/332,204.10 = 103,040.20/x
  3. Step 3: Cross multiply
    221,354.20x = 332,204.10 × 103,040.20
  4. Step 4: Simplify right side
    221,354.20x = 34,230,376,904.82
  5. Step 5: Solve for x
    x = 34,230,376,904.82/221,354.20
  6. Step 6: Final answer
    x = 154,640.74

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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.