Home / 266,191.14-399,344.12-76,650.23

Finding the Fourth Proportional to 266,191.14, 399,344.12 and 76,650.23

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Solution

The fourth proportional to 266,191.14, 399,344.12 and 76,650.23 is: 114,991.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,191.14 : 399,344.12 = 76,650.23 : x
  2. Step 2: Convert to fraction form
    266,191.14/399,344.12 = 76,650.23/x
  3. Step 3: Cross multiply
    266,191.14x = 399,344.12 × 76,650.23
  4. Step 4: Simplify right side
    266,191.14x = 30,609,818,647.15
  5. Step 5: Solve for x
    x = 30,609,818,647.15/266,191.14
  6. Step 6: Final answer
    x = 114,991.88

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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.