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Finding the Fourth Proportional to 214.18, 293.85 and 203.86

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Solution

The fourth proportional to 214.18, 293.85 and 203.86 is: 279.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    214.18 : 293.85 = 203.86 : x
  2. Step 2: Convert to fraction form
    214.18/293.85 = 203.86/x
  3. Step 3: Cross multiply
    214.18x = 293.85 × 203.86
  4. Step 4: Simplify right side
    214.18x = 59,904.26
  5. Step 5: Solve for x
    x = 59,904.26/214.18
  6. Step 6: Final answer
    x = 279.69

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.