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Finding the Fourth Proportional to 467.57, 644.96 and 368.65

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Solution

The fourth proportional to 467.57, 644.96 and 368.65 is: 508.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    467.57 : 644.96 = 368.65 : x
  2. Step 2: Convert to fraction form
    467.57/644.96 = 368.65/x
  3. Step 3: Cross multiply
    467.57x = 644.96 × 368.65
  4. Step 4: Simplify right side
    467.57x = 237,766.23
  5. Step 5: Solve for x
    x = 237,766.23/467.57
  6. Step 6: Final answer
    x = 508.51

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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.