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Finding the Fourth Proportional to 276.80, 373.50 and 276.80

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Solution

The fourth proportional to 276.80, 373.50 and 276.80 is: 373.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    276.80 : 373.50 = 276.80 : x
  2. Step 2: Convert to fraction form
    276.80/373.50 = 276.80/x
  3. Step 3: Cross multiply
    276.80x = 373.50 × 276.80
  4. Step 4: Simplify right side
    276.80x = 103,384.80
  5. Step 5: Solve for x
    x = 103,384.80/276.80
  6. Step 6: Final answer
    x = 373.50

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.