Home / 218,823.70-328,235.55-108,001.30

Finding the Fourth Proportional to 218,823.70, 328,235.55 and 108,001.30

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Solution

The fourth proportional to 218,823.70, 328,235.55 and 108,001.30 is: 162,001.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,823.70 : 328,235.55 = 108,001.30 : x
  2. Step 2: Convert to fraction form
    218,823.70/328,235.55 = 108,001.30/x
  3. Step 3: Cross multiply
    218,823.70x = 328,235.55 × 108,001.30
  4. Step 4: Simplify right side
    218,823.70x = 35,449,866,106.22
  5. Step 5: Solve for x
    x = 35,449,866,106.22/218,823.70
  6. Step 6: Final answer
    x = 162,001.95

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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.