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Finding the Fourth Proportional to 221,411.70, 332,117.55 and 203,040.90

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Solution

The fourth proportional to 221,411.70, 332,117.55 and 203,040.90 is: 304,561.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,411.70 : 332,117.55 = 203,040.90 : x
  2. Step 2: Convert to fraction form
    221,411.70/332,117.55 = 203,040.90/x
  3. Step 3: Cross multiply
    221,411.70x = 332,117.55 × 203,040.90
  4. Step 4: Simplify right side
    221,411.70x = 67,433,446,257.80
  5. Step 5: Solve for x
    x = 67,433,446,257.80/221,411.70
  6. Step 6: Final answer
    x = 304,561.35

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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.