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Finding the Fourth Proportional to 298.72, 448.53 and 177.04

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Solution

The fourth proportional to 298.72, 448.53 and 177.04 is: 265.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    298.72 : 448.53 = 177.04 : x
  2. Step 2: Convert to fraction form
    298.72/448.53 = 177.04/x
  3. Step 3: Cross multiply
    298.72x = 448.53 × 177.04
  4. Step 4: Simplify right side
    298.72x = 79,407.75
  5. Step 5: Solve for x
    x = 79,407.75/298.72
  6. Step 6: Final answer
    x = 265.83

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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.