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Finding the Fourth Proportional to 246.93, 340.65 and 172.95

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Solution

The fourth proportional to 246.93, 340.65 and 172.95 is: 238.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    246.93 : 340.65 = 172.95 : x
  2. Step 2: Convert to fraction form
    246.93/340.65 = 172.95/x
  3. Step 3: Cross multiply
    246.93x = 340.65 × 172.95
  4. Step 4: Simplify right side
    246.93x = 58,915.42
  5. Step 5: Solve for x
    x = 58,915.42/246.93
  6. Step 6: Final answer
    x = 238.59

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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.