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Finding the Fourth Proportional to 469.84, 704.70 and 196.18

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Solution

The fourth proportional to 469.84, 704.70 and 196.18 is: 294.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    469.84 : 704.70 = 196.18 : x
  2. Step 2: Convert to fraction form
    469.84/704.70 = 196.18/x
  3. Step 3: Cross multiply
    469.84x = 704.70 × 196.18
  4. Step 4: Simplify right side
    469.84x = 138,248.05
  5. Step 5: Solve for x
    x = 138,248.05/469.84
  6. Step 6: Final answer
    x = 294.24

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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.