Home / 225,948.76-338,923.04-85,707.38

Finding the Fourth Proportional to 225,948.76, 338,923.04 and 85,707.38

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Solution

The fourth proportional to 225,948.76, 338,923.04 and 85,707.38 is: 128,561.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,948.76 : 338,923.04 = 85,707.38 : x
  2. Step 2: Convert to fraction form
    225,948.76/338,923.04 = 85,707.38/x
  3. Step 3: Cross multiply
    225,948.76x = 338,923.04 × 85,707.38
  4. Step 4: Simplify right side
    225,948.76x = 29,048,206,198.81
  5. Step 5: Solve for x
    x = 29,048,206,198.81/225,948.76
  6. Step 6: Final answer
    x = 128,561.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.