Home / 431,146.08-646,819.38-146,839.14

Finding the Fourth Proportional to 431,146.08, 646,819.38 and 146,839.14

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Solution

The fourth proportional to 431,146.08, 646,819.38 and 146,839.14 is: 220,292.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,146.08 : 646,819.38 = 146,839.14 : x
  2. Step 2: Convert to fraction form
    431,146.08/646,819.38 = 146,839.14/x
  3. Step 3: Cross multiply
    431,146.08x = 646,819.38 × 146,839.14
  4. Step 4: Simplify right side
    431,146.08x = 94,978,401,494.53
  5. Step 5: Solve for x
    x = 94,978,401,494.53/431,146.08
  6. Step 6: Final answer
    x = 220,292.86

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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.