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Finding the Fourth Proportional to 297.88, 411.01 and 187.32

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Solution

The fourth proportional to 297.88, 411.01 and 187.32 is: 258.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    297.88 : 411.01 = 187.32 : x
  2. Step 2: Convert to fraction form
    297.88/411.01 = 187.32/x
  3. Step 3: Cross multiply
    297.88x = 411.01 × 187.32
  4. Step 4: Simplify right side
    297.88x = 76,989.37
  5. Step 5: Solve for x
    x = 76,989.37/297.88
  6. Step 6: Final answer
    x = 258.46

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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.