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Finding the Fourth Proportional to 657.23, 985.86 and 224.39

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Solution

The fourth proportional to 657.23, 985.86 and 224.39 is: 336.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    657.23 : 985.86 = 224.39 : x
  2. Step 2: Convert to fraction form
    657.23/985.86 = 224.39/x
  3. Step 3: Cross multiply
    657.23x = 985.86 × 224.39
  4. Step 4: Simplify right side
    657.23x = 221,217.13
  5. Step 5: Solve for x
    x = 221,217.13/657.23
  6. Step 6: Final answer
    x = 336.59

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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.