Home / 280,942.33-387,628.45-166,215.55

Finding the Fourth Proportional to 280,942.33, 387,628.45 and 166,215.55

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Solution

The fourth proportional to 280,942.33, 387,628.45 and 166,215.55 is: 229,334.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,942.33 : 387,628.45 = 166,215.55 : x
  2. Step 2: Convert to fraction form
    280,942.33/387,628.45 = 166,215.55/x
  3. Step 3: Cross multiply
    280,942.33x = 387,628.45 × 166,215.55
  4. Step 4: Simplify right side
    280,942.33x = 64,429,876,012.40
  5. Step 5: Solve for x
    x = 64,429,876,012.40/280,942.33
  6. Step 6: Final answer
    x = 229,334.88

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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.