Home / 266,020.86-398,806.56-123,792.75

Finding the Fourth Proportional to 266,020.86, 398,806.56 and 123,792.75

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Solution

The fourth proportional to 266,020.86, 398,806.56 and 123,792.75 is: 185,584.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,020.86 : 398,806.56 = 123,792.75 : x
  2. Step 2: Convert to fraction form
    266,020.86/398,806.56 = 123,792.75/x
  3. Step 3: Cross multiply
    266,020.86x = 398,806.56 × 123,792.75
  4. Step 4: Simplify right side
    266,020.86x = 49,369,360,780.44
  5. Step 5: Solve for x
    x = 49,369,360,780.44/266,020.86
  6. Step 6: Final answer
    x = 185,584.55

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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.