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Finding the Fourth Proportional to 243.66, 336.32 and 150.51

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Solution

The fourth proportional to 243.66, 336.32 and 150.51 is: 207.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    243.66 : 336.32 = 150.51 : x
  2. Step 2: Convert to fraction form
    243.66/336.32 = 150.51/x
  3. Step 3: Cross multiply
    243.66x = 336.32 × 150.51
  4. Step 4: Simplify right side
    243.66x = 50,619.52
  5. Step 5: Solve for x
    x = 50,619.52/243.66
  6. Step 6: Final answer
    x = 207.75

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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.