Home / 218,921.11-328,416.77-92,562.68

Finding the Fourth Proportional to 218,921.11, 328,416.77 and 92,562.68

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Solution

The fourth proportional to 218,921.11, 328,416.77 and 92,562.68 is: 138,858.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,921.11 : 328,416.77 = 92,562.68 : x
  2. Step 2: Convert to fraction form
    218,921.11/328,416.77 = 92,562.68/x
  3. Step 3: Cross multiply
    218,921.11x = 328,416.77 × 92,562.68
  4. Step 4: Simplify right side
    218,921.11x = 30,399,135,925.33
  5. Step 5: Solve for x
    x = 30,399,135,925.33/218,921.11
  6. Step 6: Final answer
    x = 138,858.86

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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.