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Finding the Fourth Proportional to 219,862.35, 329,793.53 and 207,615.15

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Solution

The fourth proportional to 219,862.35, 329,793.53 and 207,615.15 is: 311,422.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,862.35 : 329,793.53 = 207,615.15 : x
  2. Step 2: Convert to fraction form
    219,862.35/329,793.53 = 207,615.15/x
  3. Step 3: Cross multiply
    219,862.35x = 329,793.53 × 207,615.15
  4. Step 4: Simplify right side
    219,862.35x = 68,470,132,161.90
  5. Step 5: Solve for x
    x = 68,470,132,161.90/219,862.35
  6. Step 6: Final answer
    x = 311,422.73

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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.