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Finding the Fourth Proportional to 246.45, 345.75 and 246.45

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Solution

The fourth proportional to 246.45, 345.75 and 246.45 is: 345.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    246.45 : 345.75 = 246.45 : x
  2. Step 2: Convert to fraction form
    246.45/345.75 = 246.45/x
  3. Step 3: Cross multiply
    246.45x = 345.75 × 246.45
  4. Step 4: Simplify right side
    246.45x = 85,210.09
  5. Step 5: Solve for x
    x = 85,210.09/246.45
  6. Step 6: Final answer
    x = 345.75

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.