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Finding the Fourth Proportional to 206,350.60, 309,525.98 and 136,213.48

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Solution

The fourth proportional to 206,350.60, 309,525.98 and 136,213.48 is: 204,320.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,350.60 : 309,525.98 = 136,213.48 : x
  2. Step 2: Convert to fraction form
    206,350.60/309,525.98 = 136,213.48/x
  3. Step 3: Cross multiply
    206,350.60x = 309,525.98 × 136,213.48
  4. Step 4: Simplify right side
    206,350.60x = 42,161,610,886.21
  5. Step 5: Solve for x
    x = 42,161,610,886.21/206,350.60
  6. Step 6: Final answer
    x = 204,320.27

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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.