Home / 431,530.22-647,271.85-132,010.79

Finding the Fourth Proportional to 431,530.22, 647,271.85 and 132,010.79

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Solution

The fourth proportional to 431,530.22, 647,271.85 and 132,010.79 is: 198,009.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,530.22 : 647,271.85 = 132,010.79 : x
  2. Step 2: Convert to fraction form
    431,530.22/647,271.85 = 132,010.79/x
  3. Step 3: Cross multiply
    431,530.22x = 647,271.85 × 132,010.79
  4. Step 4: Simplify right side
    431,530.22x = 85,446,868,585.30
  5. Step 5: Solve for x
    x = 85,446,868,585.30/431,530.22
  6. Step 6: Final answer
    x = 198,009.01

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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.