Home / 245,288.96-338,498.24-137,863.36

Finding the Fourth Proportional to 245,288.96, 338,498.24 and 137,863.36

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Solution

The fourth proportional to 245,288.96, 338,498.24 and 137,863.36 is: 190,251.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,288.96 : 338,498.24 = 137,863.36 : x
  2. Step 2: Convert to fraction form
    245,288.96/338,498.24 = 137,863.36/x
  3. Step 3: Cross multiply
    245,288.96x = 338,498.24 × 137,863.36
  4. Step 4: Simplify right side
    245,288.96x = 46,666,504,720.49
  5. Step 5: Solve for x
    x = 46,666,504,720.49/245,288.96
  6. Step 6: Final answer
    x = 190,251.14

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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.