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Finding the Fourth Proportional to 239.95, 333.35 and 237.70

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Solution

The fourth proportional to 239.95, 333.35 and 237.70 is: 330.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    239.95 : 333.35 = 237.70 : x
  2. Step 2: Convert to fraction form
    239.95/333.35 = 237.70/x
  3. Step 3: Cross multiply
    239.95x = 333.35 × 237.70
  4. Step 4: Simplify right side
    239.95x = 79,237.30
  5. Step 5: Solve for x
    x = 79,237.30/239.95
  6. Step 6: Final answer
    x = 330.22

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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.