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Finding the Fourth Proportional to 296,818.97, 445,222.17 and 72,180.59

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Solution

The fourth proportional to 296,818.97, 445,222.17 and 72,180.59 is: 108,269.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,818.97 : 445,222.17 = 72,180.59 : x
  2. Step 2: Convert to fraction form
    296,818.97/445,222.17 = 72,180.59/x
  3. Step 3: Cross multiply
    296,818.97x = 445,222.17 × 72,180.59
  4. Step 4: Simplify right side
    296,818.97x = 32,136,396,685.57
  5. Step 5: Solve for x
    x = 32,136,396,685.57/296,818.97
  6. Step 6: Final answer
    x = 108,269.35

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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.