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Finding the Fourth Proportional to 147.37, 203.31 and 94.91

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Solution

The fourth proportional to 147.37, 203.31 and 94.91 is: 130.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    147.37 : 203.31 = 94.91 : x
  2. Step 2: Convert to fraction form
    147.37/203.31 = 94.91/x
  3. Step 3: Cross multiply
    147.37x = 203.31 × 94.91
  4. Step 4: Simplify right side
    147.37x = 19,295.14
  5. Step 5: Solve for x
    x = 19,295.14/147.37
  6. Step 6: Final answer
    x = 130.93

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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.