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Finding the Fourth Proportional to 205,131.60, 307,697.40 and 149,144.40

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Solution

The fourth proportional to 205,131.60, 307,697.40 and 149,144.40 is: 223,716.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,131.60 : 307,697.40 = 149,144.40 : x
  2. Step 2: Convert to fraction form
    205,131.60/307,697.40 = 149,144.40/x
  3. Step 3: Cross multiply
    205,131.60x = 307,697.40 × 149,144.40
  4. Step 4: Simplify right side
    205,131.60x = 45,891,344,104.56
  5. Step 5: Solve for x
    x = 45,891,344,104.56/205,131.60
  6. Step 6: Final answer
    x = 223,716.60

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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.