Home / 218,944.20-328,416.30-144,148.80

Finding the Fourth Proportional to 218,944.20, 328,416.30 and 144,148.80

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Solution

The fourth proportional to 218,944.20, 328,416.30 and 144,148.80 is: 216,223.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,944.20 : 328,416.30 = 144,148.80 : x
  2. Step 2: Convert to fraction form
    218,944.20/328,416.30 = 144,148.80/x
  3. Step 3: Cross multiply
    218,944.20x = 328,416.30 × 144,148.80
  4. Step 4: Simplify right side
    218,944.20x = 47,340,815,545.44
  5. Step 5: Solve for x
    x = 47,340,815,545.44/218,944.20
  6. Step 6: Final answer
    x = 216,223.20

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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.