Home / 306,991.28-423,648.23-171,025.57

Finding the Fourth Proportional to 306,991.28, 423,648.23 and 171,025.57

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Solution

The fourth proportional to 306,991.28, 423,648.23 and 171,025.57 is: 236,015.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,991.28 : 423,648.23 = 171,025.57 : x
  2. Step 2: Convert to fraction form
    306,991.28/423,648.23 = 171,025.57/x
  3. Step 3: Cross multiply
    306,991.28x = 423,648.23 × 171,025.57
  4. Step 4: Simplify right side
    306,991.28x = 72,454,679,383.68
  5. Step 5: Solve for x
    x = 72,454,679,383.68/306,991.28
  6. Step 6: Final answer
    x = 236,015.43

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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.