Home / 399,708.72-551,629.49-227,633.97

Finding the Fourth Proportional to 399,708.72, 551,629.49 and 227,633.97

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Solution

The fourth proportional to 399,708.72, 551,629.49 and 227,633.97 is: 314,152.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,708.72 : 551,629.49 = 227,633.97 : x
  2. Step 2: Convert to fraction form
    399,708.72/551,629.49 = 227,633.97/x
  3. Step 3: Cross multiply
    399,708.72x = 551,629.49 × 227,633.97
  4. Step 4: Simplify right side
    399,708.72x = 125,569,610,777.78
  5. Step 5: Solve for x
    x = 125,569,610,777.78/399,708.72
  6. Step 6: Final answer
    x = 314,152.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.