Home / 218,712.40-328,198.20-144,046.60

Finding the Fourth Proportional to 218,712.40, 328,198.20 and 144,046.60

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Solution

The fourth proportional to 218,712.40, 328,198.20 and 144,046.60 is: 216,155.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,712.40 : 328,198.20 = 144,046.60 : x
  2. Step 2: Convert to fraction form
    218,712.40/328,198.20 = 144,046.60/x
  3. Step 3: Cross multiply
    218,712.40x = 328,198.20 × 144,046.60
  4. Step 4: Simplify right side
    218,712.40x = 47,275,834,836.12
  5. Step 5: Solve for x
    x = 47,275,834,836.12/218,712.40
  6. Step 6: Final answer
    x = 216,155.26

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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.