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Finding the Fourth Proportional to 264.43, 364.40 and 202.33

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Solution

The fourth proportional to 264.43, 364.40 and 202.33 is: 278.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    264.43 : 364.40 = 202.33 : x
  2. Step 2: Convert to fraction form
    264.43/364.40 = 202.33/x
  3. Step 3: Cross multiply
    264.43x = 364.40 × 202.33
  4. Step 4: Simplify right side
    264.43x = 73,728.04
  5. Step 5: Solve for x
    x = 73,728.04/264.43
  6. Step 6: Final answer
    x = 278.82

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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.