Home / 218,815.48-328,223.22-69,067.45

Finding the Fourth Proportional to 218,815.48, 328,223.22 and 69,067.45

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Solution

The fourth proportional to 218,815.48, 328,223.22 and 69,067.45 is: 103,601.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,815.48 : 328,223.22 = 69,067.45 : x
  2. Step 2: Convert to fraction form
    218,815.48/328,223.22 = 69,067.45/x
  3. Step 3: Cross multiply
    218,815.48x = 328,223.22 × 69,067.45
  4. Step 4: Simplify right side
    218,815.48x = 22,669,540,836.19
  5. Step 5: Solve for x
    x = 22,669,540,836.19/218,815.48
  6. Step 6: Final answer
    x = 103,601.18

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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.