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Finding the Fourth Proportional to 333.73, 500.05 and 211.60

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Solution

The fourth proportional to 333.73, 500.05 and 211.60 is: 317.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    333.73 : 500.05 = 211.60 : x
  2. Step 2: Convert to fraction form
    333.73/500.05 = 211.60/x
  3. Step 3: Cross multiply
    333.73x = 500.05 × 211.60
  4. Step 4: Simplify right side
    333.73x = 105,810.58
  5. Step 5: Solve for x
    x = 105,810.58/333.73
  6. Step 6: Final answer
    x = 317.05

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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.