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Finding the Fourth Proportional to 360.91, 497.91 and 229.89

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Solution

The fourth proportional to 360.91, 497.91 and 229.89 is: 317.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    360.91 : 497.91 = 229.89 : x
  2. Step 2: Convert to fraction form
    360.91/497.91 = 229.89/x
  3. Step 3: Cross multiply
    360.91x = 497.91 × 229.89
  4. Step 4: Simplify right side
    360.91x = 114,464.53
  5. Step 5: Solve for x
    x = 114,464.53/360.91
  6. Step 6: Final answer
    x = 317.16

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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.