Home / 431,863.12-647,669.40-165,604.24

Finding the Fourth Proportional to 431,863.12, 647,669.40 and 165,604.24

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Solution

The fourth proportional to 431,863.12, 647,669.40 and 165,604.24 is: 248,358.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,863.12 : 647,669.40 = 165,604.24 : x
  2. Step 2: Convert to fraction form
    431,863.12/647,669.40 = 165,604.24/x
  3. Step 3: Cross multiply
    431,863.12x = 647,669.40 × 165,604.24
  4. Step 4: Simplify right side
    431,863.12x = 107,256,798,758.26
  5. Step 5: Solve for x
    x = 107,256,798,758.26/431,863.12
  6. Step 6: Final answer
    x = 248,358.32

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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.