Home / 219,316.20-328,974.30-144,520.80

Finding the Fourth Proportional to 219,316.20, 328,974.30 and 144,520.80

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Solution

The fourth proportional to 219,316.20, 328,974.30 and 144,520.80 is: 216,781.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,316.20 : 328,974.30 = 144,520.80 : x
  2. Step 2: Convert to fraction form
    219,316.20/328,974.30 = 144,520.80/x
  3. Step 3: Cross multiply
    219,316.20x = 328,974.30 × 144,520.80
  4. Step 4: Simplify right side
    219,316.20x = 47,543,629,015.44
  5. Step 5: Solve for x
    x = 47,543,629,015.44/219,316.20
  6. Step 6: Final answer
    x = 216,781.20

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1.5x scale

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.