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Finding the Fourth Proportional to 273.30, 383.70 and 273.30

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Solution

The fourth proportional to 273.30, 383.70 and 273.30 is: 383.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    273.30 : 383.70 = 273.30 : x
  2. Step 2: Convert to fraction form
    273.30/383.70 = 273.30/x
  3. Step 3: Cross multiply
    273.30x = 383.70 × 273.30
  4. Step 4: Simplify right side
    273.30x = 104,865.21
  5. Step 5: Solve for x
    x = 104,865.21/273.30
  6. Step 6: Final answer
    x = 383.70

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.