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Finding the Fourth Proportional to 237, 355.58 and 115.24

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Solution

The fourth proportional to 237, 355.58 and 115.24 is: 172.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    237 : 355.58 = 115.24 : x
  2. Step 2: Convert to fraction form
    237/355.58 = 115.24/x
  3. Step 3: Cross multiply
    237x = 355.58 × 115.24
  4. Step 4: Simplify right side
    237x = 40,977.04
  5. Step 5: Solve for x
    x = 40,977.04/237
  6. Step 6: Final answer
    x = 172.90

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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.