Home / 215,218.40-322,885.20-192,005.60

Finding the Fourth Proportional to 215,218.40, 322,885.20 and 192,005.60

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Solution

The fourth proportional to 215,218.40, 322,885.20 and 192,005.60 is: 288,059.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,218.40 : 322,885.20 = 192,005.60 : x
  2. Step 2: Convert to fraction form
    215,218.40/322,885.20 = 192,005.60/x
  3. Step 3: Cross multiply
    215,218.40x = 322,885.20 × 192,005.60
  4. Step 4: Simplify right side
    215,218.40x = 61,995,766,557.12
  5. Step 5: Solve for x
    x = 61,995,766,557.12/215,218.40
  6. Step 6: Final answer
    x = 288,059.79

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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.