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Finding the Fourth Proportional to 223.32, 334.98 and 115.08

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Solution

The fourth proportional to 223.32, 334.98 and 115.08 is: 172.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    223.32 : 334.98 = 115.08 : x
  2. Step 2: Convert to fraction form
    223.32/334.98 = 115.08/x
  3. Step 3: Cross multiply
    223.32x = 334.98 × 115.08
  4. Step 4: Simplify right side
    223.32x = 38,549.50
  5. Step 5: Solve for x
    x = 38,549.50/223.32
  6. Step 6: Final answer
    x = 172.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.