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Finding the Fourth Proportional to 237.60, 343.80 and 237.60

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Solution

The fourth proportional to 237.60, 343.80 and 237.60 is: 343.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    237.60 : 343.80 = 237.60 : x
  2. Step 2: Convert to fraction form
    237.60/343.80 = 237.60/x
  3. Step 3: Cross multiply
    237.60x = 343.80 × 237.60
  4. Step 4: Simplify right side
    237.60x = 81,686.88
  5. Step 5: Solve for x
    x = 81,686.88/237.60
  6. Step 6: Final answer
    x = 343.80

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.