Home / 275,172.48-379,753.38-207,066.90

Finding the Fourth Proportional to 275,172.48, 379,753.38 and 207,066.90

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Solution

The fourth proportional to 275,172.48, 379,753.38 and 207,066.90 is: 285,763.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,172.48 : 379,753.38 = 207,066.90 : x
  2. Step 2: Convert to fraction form
    275,172.48/379,753.38 = 207,066.90/x
  3. Step 3: Cross multiply
    275,172.48x = 379,753.38 × 207,066.90
  4. Step 4: Simplify right side
    275,172.48x = 78,634,355,161.12
  5. Step 5: Solve for x
    x = 78,634,355,161.12/275,172.48
  6. Step 6: Final answer
    x = 285,763.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.