Home / 431,769.12-647,376.55-179,223.93

Finding the Fourth Proportional to 431,769.12, 647,376.55 and 179,223.93

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Solution

The fourth proportional to 431,769.12, 647,376.55 and 179,223.93 is: 268,720.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,769.12 : 647,376.55 = 179,223.93 : x
  2. Step 2: Convert to fraction form
    431,769.12/647,376.55 = 179,223.93/x
  3. Step 3: Cross multiply
    431,769.12x = 647,376.55 × 179,223.93
  4. Step 4: Simplify right side
    431,769.12x = 116,025,369,480.84
  5. Step 5: Solve for x
    x = 116,025,369,480.84/431,769.12
  6. Step 6: Final answer
    x = 268,720.86

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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.