Home / 218,826.15-328,239.23-69,171.56

Finding the Fourth Proportional to 218,826.15, 328,239.23 and 69,171.56

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Solution

The fourth proportional to 218,826.15, 328,239.23 and 69,171.56 is: 103,757.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,826.15 : 328,239.23 = 69,171.56 : x
  2. Step 2: Convert to fraction form
    218,826.15/328,239.23 = 69,171.56/x
  3. Step 3: Cross multiply
    218,826.15x = 328,239.23 × 69,171.56
  4. Step 4: Simplify right side
    218,826.15x = 22,704,817,605.24
  5. Step 5: Solve for x
    x = 22,704,817,605.24/218,826.15
  6. Step 6: Final answer
    x = 103,757.33

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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.