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Finding the Fourth Proportional to 335.44, 503.26 and 152.78

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Solution

The fourth proportional to 335.44, 503.26 and 152.78 is: 229.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    335.44 : 503.26 = 152.78 : x
  2. Step 2: Convert to fraction form
    335.44/503.26 = 152.78/x
  3. Step 3: Cross multiply
    335.44x = 503.26 × 152.78
  4. Step 4: Simplify right side
    335.44x = 76,887.30
  5. Step 5: Solve for x
    x = 76,887.30/335.44
  6. Step 6: Final answer
    x = 229.22

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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.