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Finding the Fourth Proportional to 263,453.42, 395,019.92 and 103,337.48

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Solution

The fourth proportional to 263,453.42, 395,019.92 and 103,337.48 is: 154,943.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,453.42 : 395,019.92 = 103,337.48 : x
  2. Step 2: Convert to fraction form
    263,453.42/395,019.92 = 103,337.48/x
  3. Step 3: Cross multiply
    263,453.42x = 395,019.92 × 103,337.48
  4. Step 4: Simplify right side
    263,453.42x = 40,820,363,082.60
  5. Step 5: Solve for x
    x = 40,820,363,082.60/263,453.42
  6. Step 6: Final answer
    x = 154,943.38

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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.