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Finding the Fourth Proportional to 263,550.41, 363,699.78 and 142,691.78

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Solution

The fourth proportional to 263,550.41, 363,699.78 and 142,691.78 is: 196,914.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,550.41 : 363,699.78 = 142,691.78 : x
  2. Step 2: Convert to fraction form
    263,550.41/363,699.78 = 142,691.78/x
  3. Step 3: Cross multiply
    263,550.41x = 363,699.78 × 142,691.78
  4. Step 4: Simplify right side
    263,550.41x = 51,896,968,993.81
  5. Step 5: Solve for x
    x = 51,896,968,993.81/263,550.41
  6. Step 6: Final answer
    x = 196,914.77

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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.