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Finding the Fourth Proportional to 469.97, 704.74 and 238.85

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Solution

The fourth proportional to 469.97, 704.74 and 238.85 is: 358.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    469.97 : 704.74 = 238.85 : x
  2. Step 2: Convert to fraction form
    469.97/704.74 = 238.85/x
  3. Step 3: Cross multiply
    469.97x = 704.74 × 238.85
  4. Step 4: Simplify right side
    469.97x = 168,327.15
  5. Step 5: Solve for x
    x = 168,327.15/469.97
  6. Step 6: Final answer
    x = 358.17

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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.