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Finding the Fourth Proportional to 297.84, 410.84 and 187.34

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Solution

The fourth proportional to 297.84, 410.84 and 187.34 is: 258.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    297.84 : 410.84 = 187.34 : x
  2. Step 2: Convert to fraction form
    297.84/410.84 = 187.34/x
  3. Step 3: Cross multiply
    297.84x = 410.84 × 187.34
  4. Step 4: Simplify right side
    297.84x = 76,963.77
  5. Step 5: Solve for x
    x = 76,963.77/297.84
  6. Step 6: Final answer
    x = 258.41

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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.