Home / 280,588.45-387,097.42-207,176.82

Finding the Fourth Proportional to 280,588.45, 387,097.42 and 207,176.82

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Solution

The fourth proportional to 280,588.45, 387,097.42 and 207,176.82 is: 285,819.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,588.45 : 387,097.42 = 207,176.82 : x
  2. Step 2: Convert to fraction form
    280,588.45/387,097.42 = 207,176.82/x
  3. Step 3: Cross multiply
    280,588.45x = 387,097.42 × 207,176.82
  4. Step 4: Simplify right side
    280,588.45x = 80,197,612,505.80
  5. Step 5: Solve for x
    x = 80,197,612,505.80/280,588.45
  6. Step 6: Final answer
    x = 285,819.36

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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.