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Finding the Fourth Proportional to 424,382.69, 636,854.46 and 199,807.35

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Solution

The fourth proportional to 424,382.69, 636,854.46 and 199,807.35 is: 299,843.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,382.69 : 636,854.46 = 199,807.35 : x
  2. Step 2: Convert to fraction form
    424,382.69/636,854.46 = 199,807.35/x
  3. Step 3: Cross multiply
    424,382.69x = 636,854.46 × 199,807.35
  4. Step 4: Simplify right side
    424,382.69x = 127,248,201,988.28
  5. Step 5: Solve for x
    x = 127,248,201,988.28/424,382.69
  6. Step 6: Final answer
    x = 299,843.05

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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.