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Finding the Fourth Proportional to 233.10, 349.66 and 117.60

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Solution

The fourth proportional to 233.10, 349.66 and 117.60 is: 176.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    233.10 : 349.66 = 117.60 : x
  2. Step 2: Convert to fraction form
    233.10/349.66 = 117.60/x
  3. Step 3: Cross multiply
    233.10x = 349.66 × 117.60
  4. Step 4: Simplify right side
    233.10x = 41,120.02
  5. Step 5: Solve for x
    x = 41,120.02/233.10
  6. Step 6: Final answer
    x = 176.41

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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.