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Finding the Fourth Proportional to 293.28, 440.28 and 277.08

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Solution

The fourth proportional to 293.28, 440.28 and 277.08 is: 415.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    293.28 : 440.28 = 277.08 : x
  2. Step 2: Convert to fraction form
    293.28/440.28 = 277.08/x
  3. Step 3: Cross multiply
    293.28x = 440.28 × 277.08
  4. Step 4: Simplify right side
    293.28x = 121,992.78
  5. Step 5: Solve for x
    x = 121,992.78/293.28
  6. Step 6: Final answer
    x = 415.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.