Home / 245,474.75-338,757.19-138,043.85

Finding the Fourth Proportional to 245,474.75, 338,757.19 and 138,043.85

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Solution

The fourth proportional to 245,474.75, 338,757.19 and 138,043.85 is: 190,501.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,474.75 : 338,757.19 = 138,043.85 : x
  2. Step 2: Convert to fraction form
    245,474.75/338,757.19 = 138,043.85/x
  3. Step 3: Cross multiply
    245,474.75x = 338,757.19 × 138,043.85
  4. Step 4: Simplify right side
    245,474.75x = 46,763,344,683.89
  5. Step 5: Solve for x
    x = 46,763,344,683.89/245,474.75
  6. Step 6: Final answer
    x = 190,501.65

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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.