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Finding the Fourth Proportional to 248.00, 343.80 and 242.99

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Solution

The fourth proportional to 248.00, 343.80 and 242.99 is: 336.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    248.00 : 343.80 = 242.99 : x
  2. Step 2: Convert to fraction form
    248.00/343.80 = 242.99/x
  3. Step 3: Cross multiply
    248.00x = 343.80 × 242.99
  4. Step 4: Simplify right side
    248.00x = 83,538.24
  5. Step 5: Solve for x
    x = 83,538.24/248.00
  6. Step 6: Final answer
    x = 336.85

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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.