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Finding the Fourth Proportional to 474.42, 654.90 and 334.65

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Solution

The fourth proportional to 474.42, 654.90 and 334.65 is: 461.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    474.42 : 654.90 = 334.65 : x
  2. Step 2: Convert to fraction form
    474.42/654.90 = 334.65/x
  3. Step 3: Cross multiply
    474.42x = 654.90 × 334.65
  4. Step 4: Simplify right side
    474.42x = 219,162.29
  5. Step 5: Solve for x
    x = 219,162.29/474.42
  6. Step 6: Final answer
    x = 461.96

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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.