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Finding the Fourth Proportional to 471.69, 707.53 and 183.19

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Solution

The fourth proportional to 471.69, 707.53 and 183.19 is: 274.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    471.69 : 707.53 = 183.19 : x
  2. Step 2: Convert to fraction form
    471.69/707.53 = 183.19/x
  3. Step 3: Cross multiply
    471.69x = 707.53 × 183.19
  4. Step 4: Simplify right side
    471.69x = 129,612.42
  5. Step 5: Solve for x
    x = 129,612.42/471.69
  6. Step 6: Final answer
    x = 274.78

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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.