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Finding the Fourth Proportional to 246.93, 340.75 and 136.40

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Solution

The fourth proportional to 246.93, 340.75 and 136.40 is: 188.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    246.93 : 340.75 = 136.40 : x
  2. Step 2: Convert to fraction form
    246.93/340.75 = 136.40/x
  3. Step 3: Cross multiply
    246.93x = 340.75 × 136.40
  4. Step 4: Simplify right side
    246.93x = 46,478.81
  5. Step 5: Solve for x
    x = 46,478.81/246.93
  6. Step 6: Final answer
    x = 188.23

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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.