Home / 280,974.80-387,742.92-166,332.08

Finding the Fourth Proportional to 280,974.80, 387,742.92 and 166,332.08

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Solution

The fourth proportional to 280,974.80, 387,742.92 and 166,332.08 is: 229,536.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,974.80 : 387,742.92 = 166,332.08 : x
  2. Step 2: Convert to fraction form
    280,974.80/387,742.92 = 166,332.08/x
  3. Step 3: Cross multiply
    280,974.80x = 387,742.92 × 166,332.08
  4. Step 4: Simplify right side
    280,974.80x = 64,494,086,388.87
  5. Step 5: Solve for x
    x = 64,494,086,388.87/280,974.80
  6. Step 6: Final answer
    x = 229,536.91

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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.