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Finding the Fourth Proportional to 399,889.54, 551,851.25 and 227,804.96

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Solution

The fourth proportional to 399,889.54, 551,851.25 and 227,804.96 is: 314,372.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,889.54 : 551,851.25 = 227,804.96 : x
  2. Step 2: Convert to fraction form
    399,889.54/551,851.25 = 227,804.96/x
  3. Step 3: Cross multiply
    399,889.54x = 551,851.25 × 227,804.96
  4. Step 4: Simplify right side
    399,889.54x = 125,714,448,033.92
  5. Step 5: Solve for x
    x = 125,714,448,033.92/399,889.54
  6. Step 6: Final answer
    x = 314,372.93

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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.