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Finding the Fourth Proportional to 339,141.90, 508,712.85 and 206,282.70

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Solution

The fourth proportional to 339,141.90, 508,712.85 and 206,282.70 is: 309,424.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,141.90 : 508,712.85 = 206,282.70 : x
  2. Step 2: Convert to fraction form
    339,141.90/508,712.85 = 206,282.70/x
  3. Step 3: Cross multiply
    339,141.90x = 508,712.85 × 206,282.70
  4. Step 4: Simplify right side
    339,141.90x = 104,938,660,222.70
  5. Step 5: Solve for x
    x = 104,938,660,222.70/339,141.90
  6. Step 6: Final answer
    x = 309,424.05

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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.