Home / 431,231.48-646,972.02-178,465.31

Finding the Fourth Proportional to 431,231.48, 646,972.02 and 178,465.31

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Solution

The fourth proportional to 431,231.48, 646,972.02 and 178,465.31 is: 267,749.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,231.48 : 646,972.02 = 178,465.31 : x
  2. Step 2: Convert to fraction form
    431,231.48/646,972.02 = 178,465.31/x
  3. Step 3: Cross multiply
    431,231.48x = 646,972.02 × 178,465.31
  4. Step 4: Simplify right side
    431,231.48x = 115,462,062,110.63
  5. Step 5: Solve for x
    x = 115,462,062,110.63/431,231.48
  6. Step 6: Final answer
    x = 267,749.61

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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.