Home / 399,949.98-551,965.17-227,920.56

Finding the Fourth Proportional to 399,949.98, 551,965.17 and 227,920.56

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Solution

The fourth proportional to 399,949.98, 551,965.17 and 227,920.56 is: 314,549.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,949.98 : 551,965.17 = 227,920.56 : x
  2. Step 2: Convert to fraction form
    399,949.98/551,965.17 = 227,920.56/x
  3. Step 3: Cross multiply
    399,949.98x = 551,965.17 × 227,920.56
  4. Step 4: Simplify right side
    399,949.98x = 125,804,210,646.90
  5. Step 5: Solve for x
    x = 125,804,210,646.90/399,949.98
  6. Step 6: Final answer
    x = 314,549.86

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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.