Home / 280,595.80-387,107.51-207,184.18

Finding the Fourth Proportional to 280,595.80, 387,107.51 and 207,184.18

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Solution

The fourth proportional to 280,595.80, 387,107.51 and 207,184.18 is: 285,829.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,595.80 : 387,107.51 = 207,184.18 : x
  2. Step 2: Convert to fraction form
    280,595.80/387,107.51 = 207,184.18/x
  3. Step 3: Cross multiply
    280,595.80x = 387,107.51 × 207,184.18
  4. Step 4: Simplify right side
    280,595.80x = 80,202,550,753.33
  5. Step 5: Solve for x
    x = 80,202,550,753.33/280,595.80
  6. Step 6: Final answer
    x = 285,829.48

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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.