Home / 217,108.45-299,626.28-136,604.98

Finding the Fourth Proportional to 217,108.45, 299,626.28 and 136,604.98

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Solution

The fourth proportional to 217,108.45, 299,626.28 and 136,604.98 is: 188,525.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,108.45 : 299,626.28 = 136,604.98 : x
  2. Step 2: Convert to fraction form
    217,108.45/299,626.28 = 136,604.98/x
  3. Step 3: Cross multiply
    217,108.45x = 299,626.28 × 136,604.98
  4. Step 4: Simplify right side
    217,108.45x = 40,930,441,067.05
  5. Step 5: Solve for x
    x = 40,930,441,067.05/217,108.45
  6. Step 6: Final answer
    x = 188,525.33

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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.