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Finding the Fourth Proportional to 363,876.67, 545,211.57 and 221,290.65

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Solution

The fourth proportional to 363,876.67, 545,211.57 and 221,290.65 is: 331,569.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,876.67 : 545,211.57 = 221,290.65 : x
  2. Step 2: Convert to fraction form
    363,876.67/545,211.57 = 221,290.65/x
  3. Step 3: Cross multiply
    363,876.67x = 545,211.57 × 221,290.65
  4. Step 4: Simplify right side
    363,876.67x = 120,650,223,542.66
  5. Step 5: Solve for x
    x = 120,650,223,542.66/363,876.67
  6. Step 6: Final answer
    x = 331,569.00

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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.