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Finding the Fourth Proportional to 275,028.68, 412,543.40 and 75,350.80

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Solution

The fourth proportional to 275,028.68, 412,543.40 and 75,350.80 is: 113,026.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,028.68 : 412,543.40 = 75,350.80 : x
  2. Step 2: Convert to fraction form
    275,028.68/412,543.40 = 75,350.80/x
  3. Step 3: Cross multiply
    275,028.68x = 412,543.40 × 75,350.80
  4. Step 4: Simplify right side
    275,028.68x = 31,085,475,224.72
  5. Step 5: Solve for x
    x = 31,085,475,224.72/275,028.68
  6. Step 6: Final answer
    x = 113,026.30

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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.