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Finding the Fourth Proportional to 233.46, 349.79 and 156.65

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Solution

The fourth proportional to 233.46, 349.79 and 156.65 is: 234.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    233.46 : 349.79 = 156.65 : x
  2. Step 2: Convert to fraction form
    233.46/349.79 = 156.65/x
  3. Step 3: Cross multiply
    233.46x = 349.79 × 156.65
  4. Step 4: Simplify right side
    233.46x = 54,792.07
  5. Step 5: Solve for x
    x = 54,792.07/233.46
  6. Step 6: Final answer
    x = 234.70

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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.