Home / 280,682.12-387,512.97-182,658.76

Finding the Fourth Proportional to 280,682.12, 387,512.97 and 182,658.76

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Solution

The fourth proportional to 280,682.12, 387,512.97 and 182,658.76 is: 252,180.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,682.12 : 387,512.97 = 182,658.76 : x
  2. Step 2: Convert to fraction form
    280,682.12/387,512.97 = 182,658.76/x
  3. Step 3: Cross multiply
    280,682.12x = 387,512.97 × 182,658.76
  4. Step 4: Simplify right side
    280,682.12x = 70,782,636,646.55
  5. Step 5: Solve for x
    x = 70,782,636,646.55/280,682.12
  6. Step 6: Final answer
    x = 252,180.79

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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.