Home / 261,738.12-391,832.13-161,576.28

Finding the Fourth Proportional to 261,738.12, 391,832.13 and 161,576.28

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Solution

The fourth proportional to 261,738.12, 391,832.13 and 161,576.28 is: 241,885.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,738.12 : 391,832.13 = 161,576.28 : x
  2. Step 2: Convert to fraction form
    261,738.12/391,832.13 = 161,576.28/x
  3. Step 3: Cross multiply
    261,738.12x = 391,832.13 × 161,576.28
  4. Step 4: Simplify right side
    261,738.12x = 63,310,777,949.88
  5. Step 5: Solve for x
    x = 63,310,777,949.88/261,738.12
  6. Step 6: Final answer
    x = 241,885.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.