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Finding the Fourth Proportional to 424,145.22, 636,217.95 and 199,340.58

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Solution

The fourth proportional to 424,145.22, 636,217.95 and 199,340.58 is: 299,010.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,145.22 : 636,217.95 = 199,340.58 : x
  2. Step 2: Convert to fraction form
    424,145.22/636,217.95 = 199,340.58/x
  3. Step 3: Cross multiply
    424,145.22x = 636,217.95 × 199,340.58
  4. Step 4: Simplify right side
    424,145.22x = 126,824,055,159.41
  5. Step 5: Solve for x
    x = 126,824,055,159.41/424,145.22
  6. Step 6: Final answer
    x = 299,010.93

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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.