Home / 399,433.08-551,221.38-227,342.61

Finding the Fourth Proportional to 399,433.08, 551,221.38 and 227,342.61

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Solution

The fourth proportional to 399,433.08, 551,221.38 and 227,342.61 is: 313,734.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,433.08 : 551,221.38 = 227,342.61 : x
  2. Step 2: Convert to fraction form
    399,433.08/551,221.38 = 227,342.61/x
  3. Step 3: Cross multiply
    399,433.08x = 551,221.38 × 227,342.61
  4. Step 4: Simplify right side
    399,433.08x = 125,316,107,217.00
  5. Step 5: Solve for x
    x = 125,316,107,217.00/399,433.08
  6. Step 6: Final answer
    x = 313,734.92

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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.