Home / 280,914.92-387,659.94-153,589.16

Finding the Fourth Proportional to 280,914.92, 387,659.94 and 153,589.16

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Solution

The fourth proportional to 280,914.92, 387,659.94 and 153,589.16 is: 211,951.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,914.92 : 387,659.94 = 153,589.16 : x
  2. Step 2: Convert to fraction form
    280,914.92/387,659.94 = 153,589.16/x
  3. Step 3: Cross multiply
    280,914.92x = 387,659.94 × 153,589.16
  4. Step 4: Simplify right side
    280,914.92x = 59,540,364,550.25
  5. Step 5: Solve for x
    x = 59,540,364,550.25/280,914.92
  6. Step 6: Final answer
    x = 211,951.59

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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.