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Finding the Fourth Proportional to 397,714.92, 548,853.86 and 218,863.08

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Solution

The fourth proportional to 397,714.92, 548,853.86 and 218,863.08 is: 302,035.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,714.92 : 548,853.86 = 218,863.08 : x
  2. Step 2: Convert to fraction form
    397,714.92/548,853.86 = 218,863.08/x
  3. Step 3: Cross multiply
    397,714.92x = 548,853.86 × 218,863.08
  4. Step 4: Simplify right side
    397,714.92x = 120,123,846,269.49
  5. Step 5: Solve for x
    x = 120,123,846,269.49/397,714.92
  6. Step 6: Final answer
    x = 302,035.05

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1.5x scale

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.