Home / 280,942.08-387,628.11-166,215.30

Finding the Fourth Proportional to 280,942.08, 387,628.11 and 166,215.30

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Solution

The fourth proportional to 280,942.08, 387,628.11 and 166,215.30 is: 229,334.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,942.08 : 387,628.11 = 166,215.30 : x
  2. Step 2: Convert to fraction form
    280,942.08/387,628.11 = 166,215.30/x
  3. Step 3: Cross multiply
    280,942.08x = 387,628.11 × 166,215.30
  4. Step 4: Simplify right side
    280,942.08x = 64,429,722,592.08
  5. Step 5: Solve for x
    x = 64,429,722,592.08/280,942.08
  6. Step 6: Final answer
    x = 229,334.54

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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.