Home / 218,818.08-328,356.25-92,450.12

Finding the Fourth Proportional to 218,818.08, 328,356.25 and 92,450.12

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Solution

The fourth proportional to 218,818.08, 328,356.25 and 92,450.12 is: 138,729.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,818.08 : 328,356.25 = 92,450.12 : x
  2. Step 2: Convert to fraction form
    218,818.08/328,356.25 = 92,450.12/x
  3. Step 3: Cross multiply
    218,818.08x = 328,356.25 × 92,450.12
  4. Step 4: Simplify right side
    218,818.08x = 30,356,572,842.34
  5. Step 5: Solve for x
    x = 30,356,572,842.34/218,818.08
  6. Step 6: Final answer
    x = 138,729.73

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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.