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Finding the Fourth Proportional to 276.79, 379.93 and 245.01

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Solution

The fourth proportional to 276.79, 379.93 and 245.01 is: 336.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    276.79 : 379.93 = 245.01 : x
  2. Step 2: Convert to fraction form
    276.79/379.93 = 245.01/x
  3. Step 3: Cross multiply
    276.79x = 379.93 × 245.01
  4. Step 4: Simplify right side
    276.79x = 93,086.04
  5. Step 5: Solve for x
    x = 93,086.04/276.79
  6. Step 6: Final answer
    x = 336.31

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.