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Finding the Fourth Proportional to 218.13, 300.93 and 134.07

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Solution

The fourth proportional to 218.13, 300.93 and 134.07 is: 184.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    218.13 : 300.93 = 134.07 : x
  2. Step 2: Convert to fraction form
    218.13/300.93 = 134.07/x
  3. Step 3: Cross multiply
    218.13x = 300.93 × 134.07
  4. Step 4: Simplify right side
    218.13x = 40,345.01
  5. Step 5: Solve for x
    x = 40,345.01/218.13
  6. Step 6: Final answer
    x = 184.96

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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.