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Finding the Fourth Proportional to 400,250.66, 552,343.94 and 218,959.30

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Solution

The fourth proportional to 400,250.66, 552,343.94 and 218,959.30 is: 302,162.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,250.66 : 552,343.94 = 218,959.30 : x
  2. Step 2: Convert to fraction form
    400,250.66/552,343.94 = 218,959.30/x
  3. Step 3: Cross multiply
    400,250.66x = 552,343.94 × 218,959.30
  4. Step 4: Simplify right side
    400,250.66x = 120,940,839,699.92
  5. Step 5: Solve for x
    x = 120,940,839,699.92/400,250.66
  6. Step 6: Final answer
    x = 302,162.75

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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.