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Finding the Fourth Proportional to 339,002.70, 507,920.85 and 220,613.10

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Solution

The fourth proportional to 339,002.70, 507,920.85 and 220,613.10 is: 330,540.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,002.70 : 507,920.85 = 220,613.10 : x
  2. Step 2: Convert to fraction form
    339,002.70/507,920.85 = 220,613.10/x
  3. Step 3: Cross multiply
    339,002.70x = 507,920.85 × 220,613.10
  4. Step 4: Simplify right side
    339,002.70x = 112,053,993,273.14
  5. Step 5: Solve for x
    x = 112,053,993,273.14/339,002.70
  6. Step 6: Final answer
    x = 330,540.12

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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.