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Finding the Fourth Proportional to 262,819.70, 394,229.55 and 163,610.90

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Solution

The fourth proportional to 262,819.70, 394,229.55 and 163,610.90 is: 245,416.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,819.70 : 394,229.55 = 163,610.90 : x
  2. Step 2: Convert to fraction form
    262,819.70/394,229.55 = 163,610.90/x
  3. Step 3: Cross multiply
    262,819.70x = 394,229.55 × 163,610.90
  4. Step 4: Simplify right side
    262,819.70x = 64,500,251,482.10
  5. Step 5: Solve for x
    x = 64,500,251,482.10/262,819.70
  6. Step 6: Final answer
    x = 245,416.35

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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.