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Finding the Fourth Proportional to 298.63, 447.84 and 125.32

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Solution

The fourth proportional to 298.63, 447.84 and 125.32 is: 187.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    298.63 : 447.84 = 125.32 : x
  2. Step 2: Convert to fraction form
    298.63/447.84 = 125.32/x
  3. Step 3: Cross multiply
    298.63x = 447.84 × 125.32
  4. Step 4: Simplify right side
    298.63x = 56,123.31
  5. Step 5: Solve for x
    x = 56,123.31/298.63
  6. Step 6: Final answer
    x = 187.94

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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.