Home / 431,731.10-647,598.26-132,210.51

Finding the Fourth Proportional to 431,731.10, 647,598.26 and 132,210.51

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Solution

The fourth proportional to 431,731.10, 647,598.26 and 132,210.51 is: 198,316.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,731.10 : 647,598.26 = 132,210.51 : x
  2. Step 2: Convert to fraction form
    431,731.10/647,598.26 = 132,210.51/x
  3. Step 3: Cross multiply
    431,731.10x = 647,598.26 × 132,210.51
  4. Step 4: Simplify right side
    431,731.10x = 85,619,296,229.71
  5. Step 5: Solve for x
    x = 85,619,296,229.71/431,731.10
  6. Step 6: Final answer
    x = 198,316.26

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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.