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Finding the Fourth Proportional to 275,022.68, 412,534.40 and 75,344.80

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Solution

The fourth proportional to 275,022.68, 412,534.40 and 75,344.80 is: 113,017.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,022.68 : 412,534.40 = 75,344.80 : x
  2. Step 2: Convert to fraction form
    275,022.68/412,534.40 = 75,344.80/x
  3. Step 3: Cross multiply
    275,022.68x = 412,534.40 × 75,344.80
  4. Step 4: Simplify right side
    275,022.68x = 31,082,321,861.12
  5. Step 5: Solve for x
    x = 31,082,321,861.12/275,022.68
  6. Step 6: Final answer
    x = 113,017.30

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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.