Home / 211,456.56-318,451.92-192,560.88

Finding the Fourth Proportional to 211,456.56, 318,451.92 and 192,560.88

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Solution

The fourth proportional to 211,456.56, 318,451.92 and 192,560.88 is: 289,995.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,456.56 : 318,451.92 = 192,560.88 : x
  2. Step 2: Convert to fraction form
    211,456.56/318,451.92 = 192,560.88/x
  3. Step 3: Cross multiply
    211,456.56x = 318,451.92 × 192,560.88
  4. Step 4: Simplify right side
    211,456.56x = 61,321,381,952.89
  5. Step 5: Solve for x
    x = 61,321,381,952.89/211,456.56
  6. Step 6: Final answer
    x = 289,995.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.