Home / 280,537.20-420,344.10-162,001.80

Finding the Fourth Proportional to 280,537.20, 420,344.10 and 162,001.80

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Solution

The fourth proportional to 280,537.20, 420,344.10 and 162,001.80 is: 242,736.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,537.20 : 420,344.10 = 162,001.80 : x
  2. Step 2: Convert to fraction form
    280,537.20/420,344.10 = 162,001.80/x
  3. Step 3: Cross multiply
    280,537.20x = 420,344.10 × 162,001.80
  4. Step 4: Simplify right side
    280,537.20x = 68,096,500,819.38
  5. Step 5: Solve for x
    x = 68,096,500,819.38/280,537.20
  6. Step 6: Final answer
    x = 242,736.08

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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.