Home / 279,205.20-418,346.10-160,669.80

Finding the Fourth Proportional to 279,205.20, 418,346.10 and 160,669.80

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Solution

The fourth proportional to 279,205.20, 418,346.10 and 160,669.80 is: 240,739.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,205.20 : 418,346.10 = 160,669.80 : x
  2. Step 2: Convert to fraction form
    279,205.20/418,346.10 = 160,669.80/x
  3. Step 3: Cross multiply
    279,205.20x = 418,346.10 × 160,669.80
  4. Step 4: Simplify right side
    279,205.20x = 67,215,584,217.78
  5. Step 5: Solve for x
    x = 67,215,584,217.78/279,205.20
  6. Step 6: Final answer
    x = 240,739.01

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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.