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Finding the Fourth Proportional to 213.37, 294.37 and 124.81

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Solution

The fourth proportional to 213.37, 294.37 and 124.81 is: 172.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    213.37 : 294.37 = 124.81 : x
  2. Step 2: Convert to fraction form
    213.37/294.37 = 124.81/x
  3. Step 3: Cross multiply
    213.37x = 294.37 × 124.81
  4. Step 4: Simplify right side
    213.37x = 36,740.32
  5. Step 5: Solve for x
    x = 36,740.32/213.37
  6. Step 6: Final answer
    x = 172.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.