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Finding the Fourth Proportional to 293.64, 440.26 and 156.84

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Solution

The fourth proportional to 293.64, 440.26 and 156.84 is: 235.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    293.64 : 440.26 = 156.84 : x
  2. Step 2: Convert to fraction form
    293.64/440.26 = 156.84/x
  3. Step 3: Cross multiply
    293.64x = 440.26 × 156.84
  4. Step 4: Simplify right side
    293.64x = 69,050.38
  5. Step 5: Solve for x
    x = 69,050.38/293.64
  6. Step 6: Final answer
    x = 235.15

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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.