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Finding the Fourth Proportional to 437.33, 656.20 and 193.83

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Solution

The fourth proportional to 437.33, 656.20 and 193.83 is: 290.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    437.33 : 656.20 = 193.83 : x
  2. Step 2: Convert to fraction form
    437.33/656.20 = 193.83/x
  3. Step 3: Cross multiply
    437.33x = 656.20 × 193.83
  4. Step 4: Simplify right side
    437.33x = 127,191.25
  5. Step 5: Solve for x
    x = 127,191.25/437.33
  6. Step 6: Final answer
    x = 290.84

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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.