Home / 245,224.18-338,439.60-137,791.88

Finding the Fourth Proportional to 245,224.18, 338,439.60 and 137,791.88

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Solution

The fourth proportional to 245,224.18, 338,439.60 and 137,791.88 is: 190,169.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,224.18 : 338,439.60 = 137,791.88 : x
  2. Step 2: Convert to fraction form
    245,224.18/338,439.60 = 137,791.88/x
  3. Step 3: Cross multiply
    245,224.18x = 338,439.60 × 137,791.88
  4. Step 4: Simplify right side
    245,224.18x = 46,634,228,750.45
  5. Step 5: Solve for x
    x = 46,634,228,750.45/245,224.18
  6. Step 6: Final answer
    x = 190,169.78

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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.