Home / 280,935.57-387,716.42-160,115.79

Finding the Fourth Proportional to 280,935.57, 387,716.42 and 160,115.79

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Solution

The fourth proportional to 280,935.57, 387,716.42 and 160,115.79 is: 220,974.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,935.57 : 387,716.42 = 160,115.79 : x
  2. Step 2: Convert to fraction form
    280,935.57/387,716.42 = 160,115.79/x
  3. Step 3: Cross multiply
    280,935.57x = 387,716.42 × 160,115.79
  4. Step 4: Simplify right side
    280,935.57x = 62,079,520,083.69
  5. Step 5: Solve for x
    x = 62,079,520,083.69/280,935.57
  6. Step 6: Final answer
    x = 220,974.23

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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.