Home / 431,275.36-647,037.96-178,509.18

Finding the Fourth Proportional to 431,275.36, 647,037.96 and 178,509.18

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Solution

The fourth proportional to 431,275.36, 647,037.96 and 178,509.18 is: 267,815.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,275.36 : 647,037.96 = 178,509.18 : x
  2. Step 2: Convert to fraction form
    431,275.36/647,037.96 = 178,509.18/x
  3. Step 3: Cross multiply
    431,275.36x = 647,037.96 × 178,509.18
  4. Step 4: Simplify right side
    431,275.36x = 115,502,215,668.47
  5. Step 5: Solve for x
    x = 115,502,215,668.47/431,275.36
  6. Step 6: Final answer
    x = 267,815.48

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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.