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Finding the Fourth Proportional to 334.40, 461.47 and 187.04

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Solution

The fourth proportional to 334.40, 461.47 and 187.04 is: 258.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    334.40 : 461.47 = 187.04 : x
  2. Step 2: Convert to fraction form
    334.40/461.47 = 187.04/x
  3. Step 3: Cross multiply
    334.40x = 461.47 × 187.04
  4. Step 4: Simplify right side
    334.40x = 86,313.35
  5. Step 5: Solve for x
    x = 86,313.35/334.40
  6. Step 6: Final answer
    x = 258.11

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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.