Home / 431,387.01-646,882.22-146,961.81

Finding the Fourth Proportional to 431,387.01, 646,882.22 and 146,961.81

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Solution

The fourth proportional to 431,387.01, 646,882.22 and 146,961.81 is: 220,375.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,387.01 : 646,882.22 = 146,961.81 : x
  2. Step 2: Convert to fraction form
    431,387.01/646,882.22 = 146,961.81/x
  3. Step 3: Cross multiply
    431,387.01x = 646,882.22 × 146,961.81
  4. Step 4: Simplify right side
    431,387.01x = 95,066,981,173.21
  5. Step 5: Solve for x
    x = 95,066,981,173.21/431,387.01
  6. Step 6: Final answer
    x = 220,375.16

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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.