Home / 245,487.37-338,785.97-138,063.75

Finding the Fourth Proportional to 245,487.37, 338,785.97 and 138,063.75

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Solution

The fourth proportional to 245,487.37, 338,785.97 and 138,063.75 is: 190,535.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,487.37 : 338,785.97 = 138,063.75 : x
  2. Step 2: Convert to fraction form
    245,487.37/338,785.97 = 138,063.75/x
  3. Step 3: Cross multiply
    245,487.37x = 338,785.97 × 138,063.75
  4. Step 4: Simplify right side
    245,487.37x = 46,774,061,465.59
  5. Step 5: Solve for x
    x = 46,774,061,465.59/245,487.37
  6. Step 6: Final answer
    x = 190,535.51

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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.