Home / 215,629.20-322,666.20-145,645.20

Finding the Fourth Proportional to 215,629.20, 322,666.20 and 145,645.20

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Solution

The fourth proportional to 215,629.20, 322,666.20 and 145,645.20 is: 217,942.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,629.20 : 322,666.20 = 145,645.20 : x
  2. Step 2: Convert to fraction form
    215,629.20/322,666.20 = 145,645.20/x
  3. Step 3: Cross multiply
    215,629.20x = 322,666.20 × 145,645.20
  4. Step 4: Simplify right side
    215,629.20x = 46,994,783,232.24
  5. Step 5: Solve for x
    x = 46,994,783,232.24/215,629.20
  6. Step 6: Final answer
    x = 217,942.58

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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.