Home / 215,823.80-323,217.30-206,492.60

Finding the Fourth Proportional to 215,823.80, 323,217.30 and 206,492.60

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Solution

The fourth proportional to 215,823.80, 323,217.30 and 206,492.60 is: 309,242.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,823.80 : 323,217.30 = 206,492.60 : x
  2. Step 2: Convert to fraction form
    215,823.80/323,217.30 = 206,492.60/x
  3. Step 3: Cross multiply
    215,823.80x = 323,217.30 × 206,492.60
  4. Step 4: Simplify right side
    215,823.80x = 66,741,980,641.98
  5. Step 5: Solve for x
    x = 66,741,980,641.98/215,823.80
  6. Step 6: Final answer
    x = 309,242.91

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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.