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Finding the Fourth Proportional to 223.80, 333.93 and 187.80

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Solution

The fourth proportional to 223.80, 333.93 and 187.80 is: 280.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    223.80 : 333.93 = 187.80 : x
  2. Step 2: Convert to fraction form
    223.80/333.93 = 187.80/x
  3. Step 3: Cross multiply
    223.80x = 333.93 × 187.80
  4. Step 4: Simplify right side
    223.80x = 62,712.05
  5. Step 5: Solve for x
    x = 62,712.05/223.80
  6. Step 6: Final answer
    x = 280.21

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.