Home / 263,465.46-395,261.07-85,972.79

Finding the Fourth Proportional to 263,465.46, 395,261.07 and 85,972.79

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Solution

The fourth proportional to 263,465.46, 395,261.07 and 85,972.79 is: 128,979.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,465.46 : 395,261.07 = 85,972.79 : x
  2. Step 2: Convert to fraction form
    263,465.46/395,261.07 = 85,972.79/x
  3. Step 3: Cross multiply
    263,465.46x = 395,261.07 × 85,972.79
  4. Step 4: Simplify right side
    263,465.46x = 33,981,697,632.04
  5. Step 5: Solve for x
    x = 33,981,697,632.04/263,465.46
  6. Step 6: Final answer
    x = 128,979.71

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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.