Home / 305,559.38-458,351.50-145,553.06

Finding the Fourth Proportional to 305,559.38, 458,351.50 and 145,553.06

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Solution

The fourth proportional to 305,559.38, 458,351.50 and 145,553.06 is: 218,335.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,559.38 : 458,351.50 = 145,553.06 : x
  2. Step 2: Convert to fraction form
    305,559.38/458,351.50 = 145,553.06/x
  3. Step 3: Cross multiply
    305,559.38x = 458,351.50 × 145,553.06
  4. Step 4: Simplify right side
    305,559.38x = 66,714,463,380.59
  5. Step 5: Solve for x
    x = 66,714,463,380.59/305,559.38
  6. Step 6: Final answer
    x = 218,335.51

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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.