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Finding the Fourth Proportional to 469.96, 704.76 and 181.60

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Solution

The fourth proportional to 469.96, 704.76 and 181.60 is: 272.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    469.96 : 704.76 = 181.60 : x
  2. Step 2: Convert to fraction form
    469.96/704.76 = 181.60/x
  3. Step 3: Cross multiply
    469.96x = 704.76 × 181.60
  4. Step 4: Simplify right side
    469.96x = 127,984.42
  5. Step 5: Solve for x
    x = 127,984.42/469.96
  6. Step 6: Final answer
    x = 272.33

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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.