Home / 268,988.20-403,535.46-79,451.86

Finding the Fourth Proportional to 268,988.20, 403,535.46 and 79,451.86

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Solution

The fourth proportional to 268,988.20, 403,535.46 and 79,451.86 is: 119,193.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,988.20 : 403,535.46 = 79,451.86 : x
  2. Step 2: Convert to fraction form
    268,988.20/403,535.46 = 79,451.86/x
  3. Step 3: Cross multiply
    268,988.20x = 403,535.46 × 79,451.86
  4. Step 4: Simplify right side
    268,988.20x = 32,061,642,872.96
  5. Step 5: Solve for x
    x = 32,061,642,872.96/268,988.20
  6. Step 6: Final answer
    x = 119,193.49

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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.