Home / 320,862.18-443,089.85-206,339.70

Finding the Fourth Proportional to 320,862.18, 443,089.85 and 206,339.70

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Solution

The fourth proportional to 320,862.18, 443,089.85 and 206,339.70 is: 284,941.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,862.18 : 443,089.85 = 206,339.70 : x
  2. Step 2: Convert to fraction form
    320,862.18/443,089.85 = 206,339.70/x
  3. Step 3: Cross multiply
    320,862.18x = 443,089.85 × 206,339.70
  4. Step 4: Simplify right side
    320,862.18x = 91,427,025,690.35
  5. Step 5: Solve for x
    x = 91,427,025,690.35/320,862.18
  6. Step 6: Final answer
    x = 284,941.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.