Home / 218,634.32-328,107-168,764.24

Finding the Fourth Proportional to 218,634.32, 328,107 and 168,764.24

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Solution

The fourth proportional to 218,634.32, 328,107 and 168,764.24 is: 253,266.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,634.32 : 328,107 = 168,764.24 : x
  2. Step 2: Convert to fraction form
    218,634.32/328,107 = 168,764.24/x
  3. Step 3: Cross multiply
    218,634.32x = 328,107 × 168,764.24
  4. Step 4: Simplify right side
    218,634.32x = 55,372,728,493.68
  5. Step 5: Solve for x
    x = 55,372,728,493.68/218,634.32
  6. Step 6: Final answer
    x = 253,266.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.