Home / 270,381.20-373,119-149,519.12

Finding the Fourth Proportional to 270,381.20, 373,119 and 149,519.12

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Solution

The fourth proportional to 270,381.20, 373,119 and 149,519.12 is: 206,332.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,381.20 : 373,119 = 149,519.12 : x
  2. Step 2: Convert to fraction form
    270,381.20/373,119 = 149,519.12/x
  3. Step 3: Cross multiply
    270,381.20x = 373,119 × 149,519.12
  4. Step 4: Simplify right side
    270,381.20x = 55,788,424,535.28
  5. Step 5: Solve for x
    x = 55,788,424,535.28/270,381.20
  6. Step 6: Final answer
    x = 206,332.48

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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.