Home / 254,191.32-380,979-141,751.92

Finding the Fourth Proportional to 254,191.32, 380,979 and 141,751.92

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Solution

The fourth proportional to 254,191.32, 380,979 and 141,751.92 is: 212,456.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,191.32 : 380,979 = 141,751.92 : x
  2. Step 2: Convert to fraction form
    254,191.32/380,979 = 141,751.92/x
  3. Step 3: Cross multiply
    254,191.32x = 380,979 × 141,751.92
  4. Step 4: Simplify right side
    254,191.32x = 54,004,504,729.68
  5. Step 5: Solve for x
    x = 54,004,504,729.68/254,191.32
  6. Step 6: Final answer
    x = 212,456.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.