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Finding the Fourth Proportional to 245,171.25, 338,258.57 and 149,630.13

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Solution

The fourth proportional to 245,171.25, 338,258.57 and 149,630.13 is: 206,442.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,171.25 : 338,258.57 = 149,630.13 : x
  2. Step 2: Convert to fraction form
    245,171.25/338,258.57 = 149,630.13/x
  3. Step 3: Cross multiply
    245,171.25x = 338,258.57 × 149,630.13
  4. Step 4: Simplify right side
    245,171.25x = 50,613,673,054.56
  5. Step 5: Solve for x
    x = 50,613,673,054.56/245,171.25
  6. Step 6: Final answer
    x = 206,442.12

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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.