Home / 245,178.28-338,404.50-149,765.32

Finding the Fourth Proportional to 245,178.28, 338,404.50 and 149,765.32

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Solution

The fourth proportional to 245,178.28, 338,404.50 and 149,765.32 is: 206,711.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,178.28 : 338,404.50 = 149,765.32 : x
  2. Step 2: Convert to fraction form
    245,178.28/338,404.50 = 149,765.32/x
  3. Step 3: Cross multiply
    245,178.28x = 338,404.50 × 149,765.32
  4. Step 4: Simplify right side
    245,178.28x = 50,681,258,231.94
  5. Step 5: Solve for x
    x = 50,681,258,231.94/245,178.28
  6. Step 6: Final answer
    x = 206,711.86

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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.