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Finding the Fourth Proportional to 263.70, 364.14 and 202.14

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Solution

The fourth proportional to 263.70, 364.14 and 202.14 is: 279.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    263.70 : 364.14 = 202.14 : x
  2. Step 2: Convert to fraction form
    263.70/364.14 = 202.14/x
  3. Step 3: Cross multiply
    263.70x = 364.14 × 202.14
  4. Step 4: Simplify right side
    263.70x = 73,607.26
  5. Step 5: Solve for x
    x = 73,607.26/263.70
  6. Step 6: Final answer
    x = 279.13

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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.