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Finding the Fourth Proportional to 469.86, 704.41 and 196.15

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Solution

The fourth proportional to 469.86, 704.41 and 196.15 is: 294.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    469.86 : 704.41 = 196.15 : x
  2. Step 2: Convert to fraction form
    469.86/704.41 = 196.15/x
  3. Step 3: Cross multiply
    469.86x = 704.41 × 196.15
  4. Step 4: Simplify right side
    469.86x = 138,170.02
  5. Step 5: Solve for x
    x = 138,170.02/469.86
  6. Step 6: Final answer
    x = 294.07

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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.