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Finding the Fourth Proportional to 354,614.76, 489,296.70 and 225,604.44

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Solution

The fourth proportional to 354,614.76, 489,296.70 and 225,604.44 is: 311,288.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,614.76 : 489,296.70 = 225,604.44 : x
  2. Step 2: Convert to fraction form
    354,614.76/489,296.70 = 225,604.44/x
  3. Step 3: Cross multiply
    354,614.76x = 489,296.70 × 225,604.44
  4. Step 4: Simplify right side
    354,614.76x = 110,387,507,997.35
  5. Step 5: Solve for x
    x = 110,387,507,997.35/354,614.76
  6. Step 6: Final answer
    x = 311,288.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.