Home / 245,109.72-338,242.68-149,775.96

Finding the Fourth Proportional to 245,109.72, 338,242.68 and 149,775.96

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Solution

The fourth proportional to 245,109.72, 338,242.68 and 149,775.96 is: 206,685.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,109.72 : 338,242.68 = 149,775.96 : x
  2. Step 2: Convert to fraction form
    245,109.72/338,242.68 = 149,775.96/x
  3. Step 3: Cross multiply
    245,109.72x = 338,242.68 × 149,775.96
  4. Step 4: Simplify right side
    245,109.72x = 50,660,622,109.97
  5. Step 5: Solve for x
    x = 50,660,622,109.97/245,109.72
  6. Step 6: Final answer
    x = 206,685.49

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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.