Home / 431,837.64-647,839.49-165,577.38

Finding the Fourth Proportional to 431,837.64, 647,839.49 and 165,577.38

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Solution

The fourth proportional to 431,837.64, 647,839.49 and 165,577.38 is: 248,397.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,837.64 : 647,839.49 = 165,577.38 : x
  2. Step 2: Convert to fraction form
    431,837.64/647,839.49 = 165,577.38/x
  3. Step 3: Cross multiply
    431,837.64x = 647,839.49 × 165,577.38
  4. Step 4: Simplify right side
    431,837.64x = 107,267,564,586.85
  5. Step 5: Solve for x
    x = 107,267,564,586.85/431,837.64
  6. Step 6: Final answer
    x = 248,397.90

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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.