Home / 399,833.16-551,769.30-218,546.28

Finding the Fourth Proportional to 399,833.16, 551,769.30 and 218,546.28

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Solution

The fourth proportional to 399,833.16, 551,769.30 and 218,546.28 is: 301,593.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,833.16 : 551,769.30 = 218,546.28 : x
  2. Step 2: Convert to fraction form
    399,833.16/551,769.30 = 218,546.28/x
  3. Step 3: Cross multiply
    399,833.16x = 551,769.30 × 218,546.28
  4. Step 4: Simplify right side
    399,833.16x = 120,587,127,933.20
  5. Step 5: Solve for x
    x = 120,587,127,933.20/399,833.16
  6. Step 6: Final answer
    x = 301,593.61

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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.