Home / 431,272.35-647,033.47-178,506.18

Finding the Fourth Proportional to 431,272.35, 647,033.47 and 178,506.18

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Solution

The fourth proportional to 431,272.35, 647,033.47 and 178,506.18 is: 267,810.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,272.35 : 647,033.47 = 178,506.18 : x
  2. Step 2: Convert to fraction form
    431,272.35/647,033.47 = 178,506.18/x
  3. Step 3: Cross multiply
    431,272.35x = 647,033.47 × 178,506.18
  4. Step 4: Simplify right side
    431,272.35x = 115,499,472,615.58
  5. Step 5: Solve for x
    x = 115,499,472,615.58/431,272.35
  6. Step 6: Final answer
    x = 267,810.98

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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.