Home / 218,946.20-328,419.30-144,150.80

Finding the Fourth Proportional to 218,946.20, 328,419.30 and 144,150.80

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Solution

The fourth proportional to 218,946.20, 328,419.30 and 144,150.80 is: 216,226.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,946.20 : 328,419.30 = 144,150.80 : x
  2. Step 2: Convert to fraction form
    218,946.20/328,419.30 = 144,150.80/x
  3. Step 3: Cross multiply
    218,946.20x = 328,419.30 × 144,150.80
  4. Step 4: Simplify right side
    218,946.20x = 47,341,904,830.44
  5. Step 5: Solve for x
    x = 47,341,904,830.44/218,946.20
  6. Step 6: Final answer
    x = 216,226.20

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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.