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Finding the Fourth Proportional to 331.51, 497.33 and 100.37

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Solution

The fourth proportional to 331.51, 497.33 and 100.37 is: 150.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    331.51 : 497.33 = 100.37 : x
  2. Step 2: Convert to fraction form
    331.51/497.33 = 100.37/x
  3. Step 3: Cross multiply
    331.51x = 497.33 × 100.37
  4. Step 4: Simplify right side
    331.51x = 49,917.01
  5. Step 5: Solve for x
    x = 49,917.01/331.51
  6. Step 6: Final answer
    x = 150.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.