Home / 187,629.80-280,830.30-145,850.60

Finding the Fourth Proportional to 187,629.80, 280,830.30 and 145,850.60

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Solution

The fourth proportional to 187,629.80, 280,830.30 and 145,850.60 is: 218,298.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,629.80 : 280,830.30 = 145,850.60 : x
  2. Step 2: Convert to fraction form
    187,629.80/280,830.30 = 145,850.60/x
  3. Step 3: Cross multiply
    187,629.80x = 280,830.30 × 145,850.60
  4. Step 4: Simplify right side
    187,629.80x = 40,959,267,753.18
  5. Step 5: Solve for x
    x = 40,959,267,753.18/187,629.80
  6. Step 6: Final answer
    x = 218,298.31

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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.