Home / 424,010.30-636,012.20-108,466.70

Finding the Fourth Proportional to 424,010.30, 636,012.20 and 108,466.70

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Solution

The fourth proportional to 424,010.30, 636,012.20 and 108,466.70 is: 162,699.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,010.30 : 636,012.20 = 108,466.70 : x
  2. Step 2: Convert to fraction form
    424,010.30/636,012.20 = 108,466.70/x
  3. Step 3: Cross multiply
    424,010.30x = 636,012.20 × 108,466.70
  4. Step 4: Simplify right side
    424,010.30x = 68,986,141,584.85
  5. Step 5: Solve for x
    x = 68,986,141,584.85/424,010.30
  6. Step 6: Final answer
    x = 162,699.21

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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.