Home / 306,760.28-423,325.17-177,716.34

Finding the Fourth Proportional to 306,760.28, 423,325.17 and 177,716.34

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Solution

The fourth proportional to 306,760.28, 423,325.17 and 177,716.34 is: 245,246.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,760.28 : 423,325.17 = 177,716.34 : x
  2. Step 2: Convert to fraction form
    306,760.28/423,325.17 = 177,716.34/x
  3. Step 3: Cross multiply
    306,760.28x = 423,325.17 × 177,716.34
  4. Step 4: Simplify right side
    306,760.28x = 75,231,799,842.28
  5. Step 5: Solve for x
    x = 75,231,799,842.28/306,760.28
  6. Step 6: Final answer
    x = 245,246.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.