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Finding the Fourth Proportional to 246.70, 330.74 and 246.70

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Solution

The fourth proportional to 246.70, 330.74 and 246.70 is: 330.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    246.70 : 330.74 = 246.70 : x
  2. Step 2: Convert to fraction form
    246.70/330.74 = 246.70/x
  3. Step 3: Cross multiply
    246.70x = 330.74 × 246.70
  4. Step 4: Simplify right side
    246.70x = 81,593.56
  5. Step 5: Solve for x
    x = 81,593.56/246.70
  6. Step 6: Final answer
    x = 330.74

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.