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Finding the Fourth Proportional to 245,092.28, 338,228.70 and 137,662.34

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Solution

The fourth proportional to 245,092.28, 338,228.70 and 137,662.34 is: 189,974.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,092.28 : 338,228.70 = 137,662.34 : x
  2. Step 2: Convert to fraction form
    245,092.28/338,228.70 = 137,662.34/x
  3. Step 3: Cross multiply
    245,092.28x = 338,228.70 × 137,662.34
  4. Step 4: Simplify right side
    245,092.28x = 46,561,354,297.16
  5. Step 5: Solve for x
    x = 46,561,354,297.16/245,092.28
  6. Step 6: Final answer
    x = 189,974.79

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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.