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Finding the Fourth Proportional to 335.84, 503.34 and 191.64

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Solution

The fourth proportional to 335.84, 503.34 and 191.64 is: 287.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    335.84 : 503.34 = 191.64 : x
  2. Step 2: Convert to fraction form
    335.84/503.34 = 191.64/x
  3. Step 3: Cross multiply
    335.84x = 503.34 × 191.64
  4. Step 4: Simplify right side
    335.84x = 96,460.08
  5. Step 5: Solve for x
    x = 96,460.08/335.84
  6. Step 6: Final answer
    x = 287.22

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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.