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Finding the Fourth Proportional to 471.18, 650.00 and 274.65

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Solution

The fourth proportional to 471.18, 650.00 and 274.65 is: 378.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    471.18 : 650.00 = 274.65 : x
  2. Step 2: Convert to fraction form
    471.18/650.00 = 274.65/x
  3. Step 3: Cross multiply
    471.18x = 650.00 × 274.65
  4. Step 4: Simplify right side
    471.18x = 178,521.81
  5. Step 5: Solve for x
    x = 178,521.81/471.18
  6. Step 6: Final answer
    x = 378.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.