Home / 280,734.39-387,452.97-178,727.27

Finding the Fourth Proportional to 280,734.39, 387,452.97 and 178,727.27

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Solution

The fourth proportional to 280,734.39, 387,452.97 and 178,727.27 is: 246,668.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,734.39 : 387,452.97 = 178,727.27 : x
  2. Step 2: Convert to fraction form
    280,734.39/387,452.97 = 178,727.27/x
  3. Step 3: Cross multiply
    280,734.39x = 387,452.97 × 178,727.27
  4. Step 4: Simplify right side
    280,734.39x = 69,248,409,644.23
  5. Step 5: Solve for x
    x = 69,248,409,644.23/280,734.39
  6. Step 6: Final answer
    x = 246,668.78

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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.