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Finding the Fourth Proportional to 262,735.98, 394,159.32 and 85,229.13

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Solution

The fourth proportional to 262,735.98, 394,159.32 and 85,229.13 is: 127,861.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,735.98 : 394,159.32 = 85,229.13 : x
  2. Step 2: Convert to fraction form
    262,735.98/394,159.32 = 85,229.13/x
  3. Step 3: Cross multiply
    262,735.98x = 394,159.32 × 85,229.13
  4. Step 4: Simplify right side
    262,735.98x = 33,593,855,924.99
  5. Step 5: Solve for x
    x = 33,593,855,924.99/262,735.98
  6. Step 6: Final answer
    x = 127,861.65

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1.5x scale

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.