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Finding the Fourth Proportional to 292.01, 402.78 and 193.77

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Solution

The fourth proportional to 292.01, 402.78 and 193.77 is: 267.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    292.01 : 402.78 = 193.77 : x
  2. Step 2: Convert to fraction form
    292.01/402.78 = 193.77/x
  3. Step 3: Cross multiply
    292.01x = 402.78 × 193.77
  4. Step 4: Simplify right side
    292.01x = 78,044.67
  5. Step 5: Solve for x
    x = 78,044.67/292.01
  6. Step 6: Final answer
    x = 267.27

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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.