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Finding the Fourth Proportional to 157.48, 235.41 and 116.52

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Solution

The fourth proportional to 157.48, 235.41 and 116.52 is: 174.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    157.48 : 235.41 = 116.52 : x
  2. Step 2: Convert to fraction form
    157.48/235.41 = 116.52/x
  3. Step 3: Cross multiply
    157.48x = 235.41 × 116.52
  4. Step 4: Simplify right side
    157.48x = 27,429.97
  5. Step 5: Solve for x
    x = 27,429.97/157.48
  6. Step 6: Final answer
    x = 174.18

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.