Home / 240,306.28-360,421.44-80,380.96

Finding the Fourth Proportional to 240,306.28, 360,421.44 and 80,380.96

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Solution

The fourth proportional to 240,306.28, 360,421.44 and 80,380.96 is: 120,558.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,306.28 : 360,421.44 = 80,380.96 : x
  2. Step 2: Convert to fraction form
    240,306.28/360,421.44 = 80,380.96/x
  3. Step 3: Cross multiply
    240,306.28x = 360,421.44 × 80,380.96
  4. Step 4: Simplify right side
    240,306.28x = 28,971,021,351.78
  5. Step 5: Solve for x
    x = 28,971,021,351.78/240,306.28
  6. Step 6: Final answer
    x = 120,558.74

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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.