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Finding the Fourth Proportional to 243.30, 336.06 and 229.62

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Solution

The fourth proportional to 243.30, 336.06 and 229.62 is: 317.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    243.30 : 336.06 = 229.62 : x
  2. Step 2: Convert to fraction form
    243.30/336.06 = 229.62/x
  3. Step 3: Cross multiply
    243.30x = 336.06 × 229.62
  4. Step 4: Simplify right side
    243.30x = 77,166.10
  5. Step 5: Solve for x
    x = 77,166.10/243.30
  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.