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Finding the Fourth Proportional to 237.82, 328.18 and 145.82

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Solution

The fourth proportional to 237.82, 328.18 and 145.82 is: 201.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    237.82 : 328.18 = 145.82 : x
  2. Step 2: Convert to fraction form
    237.82/328.18 = 145.82/x
  3. Step 3: Cross multiply
    237.82x = 328.18 × 145.82
  4. Step 4: Simplify right side
    237.82x = 47,855.21
  5. Step 5: Solve for x
    x = 47,855.21/237.82
  6. Step 6: Final answer
    x = 201.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.