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Finding the Fourth Proportional to 157.50, 236.25 and 88.97

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Solution

The fourth proportional to 157.50, 236.25 and 88.97 is: 133.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    157.50 : 236.25 = 88.97 : x
  2. Step 2: Convert to fraction form
    157.50/236.25 = 88.97/x
  3. Step 3: Cross multiply
    157.50x = 236.25 × 88.97
  4. Step 4: Simplify right side
    157.50x = 21,017.98
  5. Step 5: Solve for x
    x = 21,017.98/157.50
  6. Step 6: Final answer
    x = 133.45

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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.