Home / 431,229.48-646,969.02-178,463.31

Finding the Fourth Proportional to 431,229.48, 646,969.02 and 178,463.31

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Solution

The fourth proportional to 431,229.48, 646,969.02 and 178,463.31 is: 267,746.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,229.48 : 646,969.02 = 178,463.31 : x
  2. Step 2: Convert to fraction form
    431,229.48/646,969.02 = 178,463.31/x
  3. Step 3: Cross multiply
    431,229.48x = 646,969.02 × 178,463.31
  4. Step 4: Simplify right side
    431,229.48x = 115,460,232,776.66
  5. Step 5: Solve for x
    x = 115,460,232,776.66/431,229.48
  6. Step 6: Final answer
    x = 267,746.61

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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.