Home / 217,015.30-299,375.49-140,512.42

Finding the Fourth Proportional to 217,015.30, 299,375.49 and 140,512.42

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Solution

The fourth proportional to 217,015.30, 299,375.49 and 140,512.42 is: 193,838.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,015.30 : 299,375.49 = 140,512.42 : x
  2. Step 2: Convert to fraction form
    217,015.30/299,375.49 = 140,512.42/x
  3. Step 3: Cross multiply
    217,015.30x = 299,375.49 × 140,512.42
  4. Step 4: Simplify right side
    217,015.30x = 42,065,974,588.59
  5. Step 5: Solve for x
    x = 42,065,974,588.59/217,015.30
  6. Step 6: Final answer
    x = 193,838.75

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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.