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Finding the Fourth Proportional to 157.46, 236.25 and 102.62

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Solution

The fourth proportional to 157.46, 236.25 and 102.62 is: 153.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    157.46 : 236.25 = 102.62 : x
  2. Step 2: Convert to fraction form
    157.46/236.25 = 102.62/x
  3. Step 3: Cross multiply
    157.46x = 236.25 × 102.62
  4. Step 4: Simplify right side
    157.46x = 24,242.79
  5. Step 5: Solve for x
    x = 24,242.79/157.46
  6. Step 6: Final answer
    x = 153.96

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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.