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Finding the Fourth Proportional to 221,838.90, 332,758.35 and 133,046.70

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Solution

The fourth proportional to 221,838.90, 332,758.35 and 133,046.70 is: 199,570.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,838.90 : 332,758.35 = 133,046.70 : x
  2. Step 2: Convert to fraction form
    221,838.90/332,758.35 = 133,046.70/x
  3. Step 3: Cross multiply
    221,838.90x = 332,758.35 × 133,046.70
  4. Step 4: Simplify right side
    221,838.90x = 44,272,400,364.95
  5. Step 5: Solve for x
    x = 44,272,400,364.95/221,838.90
  6. Step 6: Final answer
    x = 199,570.05

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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.