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Finding the Fourth Proportional to 331.59, 497.46 and 149.01

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Solution

The fourth proportional to 331.59, 497.46 and 149.01 is: 223.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    331.59 : 497.46 = 149.01 : x
  2. Step 2: Convert to fraction form
    331.59/497.46 = 149.01/x
  3. Step 3: Cross multiply
    331.59x = 497.46 × 149.01
  4. Step 4: Simplify right side
    331.59x = 74,126.51
  5. Step 5: Solve for x
    x = 74,126.51/331.59
  6. Step 6: Final answer
    x = 223.55

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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.