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Finding the Fourth Proportional to 246.33, 340.19 and 172.77

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Solution

The fourth proportional to 246.33, 340.19 and 172.77 is: 238.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    246.33 : 340.19 = 172.77 : x
  2. Step 2: Convert to fraction form
    246.33/340.19 = 172.77/x
  3. Step 3: Cross multiply
    246.33x = 340.19 × 172.77
  4. Step 4: Simplify right side
    246.33x = 58,773.76
  5. Step 5: Solve for x
    x = 58,773.76/246.33
  6. Step 6: Final answer
    x = 238.60

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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.