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Finding the Fourth Proportional to 157.39, 235.36 and 141.19

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Solution

The fourth proportional to 157.39, 235.36 and 141.19 is: 211.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    157.39 : 235.36 = 141.19 : x
  2. Step 2: Convert to fraction form
    157.39/235.36 = 141.19/x
  3. Step 3: Cross multiply
    157.39x = 235.36 × 141.19
  4. Step 4: Simplify right side
    157.39x = 33,230.48
  5. Step 5: Solve for x
    x = 33,230.48/157.39
  6. Step 6: Final answer
    x = 211.13

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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.