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Finding the Fourth Proportional to 469.83, 704.78 and 181.26

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Solution

The fourth proportional to 469.83, 704.78 and 181.26 is: 271.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    469.83 : 704.78 = 181.26 : x
  2. Step 2: Convert to fraction form
    469.83/704.78 = 181.26/x
  3. Step 3: Cross multiply
    469.83x = 704.78 × 181.26
  4. Step 4: Simplify right side
    469.83x = 127,747.52
  5. Step 5: Solve for x
    x = 127,747.52/469.83
  6. Step 6: Final answer
    x = 271.90

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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.