Home / 399,704.22-551,623.27-227,629.47

Finding the Fourth Proportional to 399,704.22, 551,623.27 and 227,629.47

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Solution

The fourth proportional to 399,704.22, 551,623.27 and 227,629.47 is: 314,146.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,704.22 : 551,623.27 = 227,629.47 : x
  2. Step 2: Convert to fraction form
    399,704.22/551,623.27 = 227,629.47/x
  3. Step 3: Cross multiply
    399,704.22x = 551,623.27 × 227,629.47
  4. Step 4: Simplify right side
    399,704.22x = 125,565,712,053.41
  5. Step 5: Solve for x
    x = 125,565,712,053.41/399,704.22
  6. Step 6: Final answer
    x = 314,146.57

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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.