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Finding the Fourth Proportional to 275,030.68, 412,546.40 and 75,352.80

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Solution

The fourth proportional to 275,030.68, 412,546.40 and 75,352.80 is: 113,029.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,030.68 : 412,546.40 = 75,352.80 : x
  2. Step 2: Convert to fraction form
    275,030.68/412,546.40 = 75,352.80/x
  3. Step 3: Cross multiply
    275,030.68x = 412,546.40 × 75,352.80
  4. Step 4: Simplify right side
    275,030.68x = 31,086,526,369.92
  5. Step 5: Solve for x
    x = 31,086,526,369.92/275,030.68
  6. Step 6: Final answer
    x = 113,029.30

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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.