Home / 215,418.45-322,362.23-187,643.55

Finding the Fourth Proportional to 215,418.45, 322,362.23 and 187,643.55

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Solution

The fourth proportional to 215,418.45, 322,362.23 and 187,643.55 is: 280,798.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,418.45 : 322,362.23 = 187,643.55 : x
  2. Step 2: Convert to fraction form
    215,418.45/322,362.23 = 187,643.55/x
  3. Step 3: Cross multiply
    215,418.45x = 322,362.23 × 187,643.55
  4. Step 4: Simplify right side
    215,418.45x = 60,489,192,284.90
  5. Step 5: Solve for x
    x = 60,489,192,284.90/215,418.45
  6. Step 6: Final answer
    x = 280,798.57

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1.5x scale

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.