Home / 305,550.75-458,338.55-145,544.43

Finding the Fourth Proportional to 305,550.75, 458,338.55 and 145,544.43

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Solution

The fourth proportional to 305,550.75, 458,338.55 and 145,544.43 is: 218,322.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,550.75 : 458,338.55 = 145,544.43 : x
  2. Step 2: Convert to fraction form
    305,550.75/458,338.55 = 145,544.43/x
  3. Step 3: Cross multiply
    305,550.75x = 458,338.55 × 145,544.43
  4. Step 4: Simplify right side
    305,550.75x = 66,708,623,006.78
  5. Step 5: Solve for x
    x = 66,708,623,006.78/305,550.75
  6. Step 6: Final answer
    x = 218,322.56

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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.