Home / 424,475.09-636,791.39-140,185.34

Finding the Fourth Proportional to 424,475.09, 636,791.39 and 140,185.34

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Solution

The fourth proportional to 424,475.09, 636,791.39 and 140,185.34 is: 210,304.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,475.09 : 636,791.39 = 140,185.34 : x
  2. Step 2: Convert to fraction form
    424,475.09/636,791.39 = 140,185.34/x
  3. Step 3: Cross multiply
    424,475.09x = 636,791.39 × 140,185.34
  4. Step 4: Simplify right side
    424,475.09x = 89,268,816,815.30
  5. Step 5: Solve for x
    x = 89,268,816,815.30/424,475.09
  6. Step 6: Final answer
    x = 210,304.02

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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.