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Finding the Fourth Proportional to 246.39, 340.03 and 135.87

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Solution

The fourth proportional to 246.39, 340.03 and 135.87 is: 187.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    246.39 : 340.03 = 135.87 : x
  2. Step 2: Convert to fraction form
    246.39/340.03 = 135.87/x
  3. Step 3: Cross multiply
    246.39x = 340.03 × 135.87
  4. Step 4: Simplify right side
    246.39x = 46,198.01
  5. Step 5: Solve for x
    x = 46,198.01/246.39
  6. Step 6: Final answer
    x = 187.50

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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.