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Finding the Fourth Proportional to 269.64, 402.60 and 242.34

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Solution

The fourth proportional to 269.64, 402.60 and 242.34 is: 361.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    269.64 : 402.60 = 242.34 : x
  2. Step 2: Convert to fraction form
    269.64/402.60 = 242.34/x
  3. Step 3: Cross multiply
    269.64x = 402.60 × 242.34
  4. Step 4: Simplify right side
    269.64x = 97,566.08
  5. Step 5: Solve for x
    x = 97,566.08/269.64
  6. Step 6: Final answer
    x = 361.84

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.