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Finding the Fourth Proportional to 398,562.92, 550,013.22 and 219,714.92

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Solution

The fourth proportional to 398,562.92, 550,013.22 and 219,714.92 is: 303,204.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,562.92 : 550,013.22 = 219,714.92 : x
  2. Step 2: Convert to fraction form
    398,562.92/550,013.22 = 219,714.92/x
  3. Step 3: Cross multiply
    398,562.92x = 550,013.22 × 219,714.92
  4. Step 4: Simplify right side
    398,562.92x = 120,846,110,631.24
  5. Step 5: Solve for x
    x = 120,846,110,631.24/398,562.92
  6. Step 6: Final answer
    x = 303,204.60

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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.