Home / 399,301.06-551,028.18-227,215.30

Finding the Fourth Proportional to 399,301.06, 551,028.18 and 227,215.30

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Solution

The fourth proportional to 399,301.06, 551,028.18 and 227,215.30 is: 313,552.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,301.06 : 551,028.18 = 227,215.30 : x
  2. Step 2: Convert to fraction form
    399,301.06/551,028.18 = 227,215.30/x
  3. Step 3: Cross multiply
    399,301.06x = 551,028.18 × 227,215.30
  4. Step 4: Simplify right side
    399,301.06x = 125,202,033,227.15
  5. Step 5: Solve for x
    x = 125,202,033,227.15/399,301.06
  6. Step 6: Final answer
    x = 313,552.97

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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.