Home / 213,622.10-320,433.15-204,521.30

Finding the Fourth Proportional to 213,622.10, 320,433.15 and 204,521.30

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Solution

The fourth proportional to 213,622.10, 320,433.15 and 204,521.30 is: 306,781.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,622.10 : 320,433.15 = 204,521.30 : x
  2. Step 2: Convert to fraction form
    213,622.10/320,433.15 = 204,521.30/x
  3. Step 3: Cross multiply
    213,622.10x = 320,433.15 × 204,521.30
  4. Step 4: Simplify right side
    213,622.10x = 65,535,404,401.10
  5. Step 5: Solve for x
    x = 65,535,404,401.10/213,622.10
  6. Step 6: Final answer
    x = 306,781.95

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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.