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Finding the Fourth Proportional to 243.75, 337.80 and 236.76

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Solution

The fourth proportional to 243.75, 337.80 and 236.76 is: 328.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    243.75 : 337.80 = 236.76 : x
  2. Step 2: Convert to fraction form
    243.75/337.80 = 236.76/x
  3. Step 3: Cross multiply
    243.75x = 337.80 × 236.76
  4. Step 4: Simplify right side
    243.75x = 79,977.53
  5. Step 5: Solve for x
    x = 79,977.53/243.75
  6. Step 6: Final answer
    x = 328.11

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.