Home / 218,832.08-328,248.25-69,087.65

Finding the Fourth Proportional to 218,832.08, 328,248.25 and 69,087.65

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Solution

The fourth proportional to 218,832.08, 328,248.25 and 69,087.65 is: 103,631.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,832.08 : 328,248.25 = 69,087.65 : x
  2. Step 2: Convert to fraction form
    218,832.08/328,248.25 = 69,087.65/x
  3. Step 3: Cross multiply
    218,832.08x = 328,248.25 × 69,087.65
  4. Step 4: Simplify right side
    218,832.08x = 22,677,898,395.15
  5. Step 5: Solve for x
    x = 22,677,898,395.15/218,832.08
  6. Step 6: Final answer
    x = 103,631.51

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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.