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Finding the Fourth Proportional to 246.47, 340.01 and 172.76

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Solution

The fourth proportional to 246.47, 340.01 and 172.76 is: 238.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    246.47 : 340.01 = 172.76 : x
  2. Step 2: Convert to fraction form
    246.47/340.01 = 172.76/x
  3. Step 3: Cross multiply
    246.47x = 340.01 × 172.76
  4. Step 4: Simplify right side
    246.47x = 58,738.86
  5. Step 5: Solve for x
    x = 58,738.86/246.47
  6. Step 6: Final answer
    x = 238.33

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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.