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Finding the Fourth Proportional to 263,154.50, 363,161.85 and 143,922.50

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Solution

The fourth proportional to 263,154.50, 363,161.85 and 143,922.50 is: 198,617.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,154.50 : 363,161.85 = 143,922.50 : x
  2. Step 2: Convert to fraction form
    263,154.50/363,161.85 = 143,922.50/x
  3. Step 3: Cross multiply
    263,154.50x = 363,161.85 × 143,922.50
  4. Step 4: Simplify right side
    263,154.50x = 52,267,161,356.63
  5. Step 5: Solve for x
    x = 52,267,161,356.63/263,154.50
  6. Step 6: Final answer
    x = 198,617.78

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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.