Home / 245,255.78-338,451.26-137,823.51

Finding the Fourth Proportional to 245,255.78, 338,451.26 and 137,823.51

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Solution

The fourth proportional to 245,255.78, 338,451.26 and 137,823.51 is: 190,195.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,255.78 : 338,451.26 = 137,823.51 : x
  2. Step 2: Convert to fraction form
    245,255.78/338,451.26 = 137,823.51/x
  3. Step 3: Cross multiply
    245,255.78x = 338,451.26 × 137,823.51
  4. Step 4: Simplify right side
    245,255.78x = 46,646,539,928.01
  5. Step 5: Solve for x
    x = 46,646,539,928.01/245,255.78
  6. Step 6: Final answer
    x = 190,195.48

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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.