Home / 399,944.12-551,937.62-218,668.12

Finding the Fourth Proportional to 399,944.12, 551,937.62 and 218,668.12

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Solution

The fourth proportional to 399,944.12, 551,937.62 and 218,668.12 is: 301,770.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,944.12 : 551,937.62 = 218,668.12 : x
  2. Step 2: Convert to fraction form
    399,944.12/551,937.62 = 218,668.12/x
  3. Step 3: Cross multiply
    399,944.12x = 551,937.62 × 218,668.12
  4. Step 4: Simplify right side
    399,944.12x = 120,691,161,722.67
  5. Step 5: Solve for x
    x = 120,691,161,722.67/399,944.12
  6. Step 6: Final answer
    x = 301,770.06

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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.