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Finding the Fourth Proportional to 792.97, 1,189.38 and 245.01

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Solution

The fourth proportional to 792.97, 1,189.38 and 245.01 is: 367.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    792.97 : 1,189.38 = 245.01 : x
  2. Step 2: Convert to fraction form
    792.97/1,189.38 = 245.01/x
  3. Step 3: Cross multiply
    792.97x = 1,189.38 × 245.01
  4. Step 4: Simplify right side
    792.97x = 291,404.05
  5. Step 5: Solve for x
    x = 291,404.05/792.97
  6. Step 6: Final answer
    x = 367.48

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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.