Home / 254,979.60-381,691.80-149,485.20

Finding the Fourth Proportional to 254,979.60, 381,691.80 and 149,485.20

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Solution

The fourth proportional to 254,979.60, 381,691.80 and 149,485.20 is: 223,771.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,979.60 : 381,691.80 = 149,485.20 : x
  2. Step 2: Convert to fraction form
    254,979.60/381,691.80 = 149,485.20/x
  3. Step 3: Cross multiply
    254,979.60x = 381,691.80 × 149,485.20
  4. Step 4: Simplify right side
    254,979.60x = 57,057,275,061.36
  5. Step 5: Solve for x
    x = 57,057,275,061.36/254,979.60
  6. Step 6: Final answer
    x = 223,771.92

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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.