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Finding the Fourth Proportional to 400,250.16, 552,343.25 and 218,958.80

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Solution

The fourth proportional to 400,250.16, 552,343.25 and 218,958.80 is: 302,162.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,250.16 : 552,343.25 = 218,958.80 : x
  2. Step 2: Convert to fraction form
    400,250.16/552,343.25 = 218,958.80/x
  3. Step 3: Cross multiply
    400,250.16x = 552,343.25 × 218,958.80
  4. Step 4: Simplify right side
    400,250.16x = 120,940,412,993.78
  5. Step 5: Solve for x
    x = 120,940,412,993.78/400,250.16
  6. Step 6: Final answer
    x = 302,162.06

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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.