Home / 268,760.70-403,199.28-81,767.34

Finding the Fourth Proportional to 268,760.70, 403,199.28 and 81,767.34

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Solution

The fourth proportional to 268,760.70, 403,199.28 and 81,767.34 is: 122,668.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,760.70 : 403,199.28 = 81,767.34 : x
  2. Step 2: Convert to fraction form
    268,760.70/403,199.28 = 81,767.34/x
  3. Step 3: Cross multiply
    268,760.70x = 403,199.28 × 81,767.34
  4. Step 4: Simplify right side
    268,760.70x = 32,968,532,615.52
  5. Step 5: Solve for x
    x = 32,968,532,615.52/268,760.70
  6. Step 6: Final answer
    x = 122,668.73

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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.