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Finding the Fourth Proportional to 246.90, 338.51 and 242.52

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Solution

The fourth proportional to 246.90, 338.51 and 242.52 is: 332.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    246.90 : 338.51 = 242.52 : x
  2. Step 2: Convert to fraction form
    246.90/338.51 = 242.52/x
  3. Step 3: Cross multiply
    246.90x = 338.51 × 242.52
  4. Step 4: Simplify right side
    246.90x = 82,095.45
  5. Step 5: Solve for x
    x = 82,095.45/246.90
  6. Step 6: Final answer
    x = 332.50

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.