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Finding the Fourth Proportional to 157.33, 234.77 and 154.36

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Solution

The fourth proportional to 157.33, 234.77 and 154.36 is: 230.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    157.33 : 234.77 = 154.36 : x
  2. Step 2: Convert to fraction form
    157.33/234.77 = 154.36/x
  3. Step 3: Cross multiply
    157.33x = 234.77 × 154.36
  4. Step 4: Simplify right side
    157.33x = 36,239.10
  5. Step 5: Solve for x
    x = 36,239.10/157.33
  6. Step 6: Final answer
    x = 230.34

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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.