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Finding the Fourth Proportional to 237.65, 355.79 and 134.45

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Solution

The fourth proportional to 237.65, 355.79 and 134.45 is: 201.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    237.65 : 355.79 = 134.45 : x
  2. Step 2: Convert to fraction form
    237.65/355.79 = 134.45/x
  3. Step 3: Cross multiply
    237.65x = 355.79 × 134.45
  4. Step 4: Simplify right side
    237.65x = 47,833.51
  5. Step 5: Solve for x
    x = 47,833.51/237.65
  6. Step 6: Final answer
    x = 201.28

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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.