Home / 268,836.75-403,256.04-79,299.50

Finding the Fourth Proportional to 268,836.75, 403,256.04 and 79,299.50

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Solution

The fourth proportional to 268,836.75, 403,256.04 and 79,299.50 is: 118,949.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,836.75 : 403,256.04 = 79,299.50 : x
  2. Step 2: Convert to fraction form
    268,836.75/403,256.04 = 79,299.50/x
  3. Step 3: Cross multiply
    268,836.75x = 403,256.04 × 79,299.50
  4. Step 4: Simplify right side
    268,836.75x = 31,978,000,327.70
  5. Step 5: Solve for x
    x = 31,978,000,327.70/268,836.75
  6. Step 6: Final answer
    x = 118,949.51

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1.5x scale

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.