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Finding the Fourth Proportional to 332,887.20, 499,039.20 and 199,820.40

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Solution

The fourth proportional to 332,887.20, 499,039.20 and 199,820.40 is: 299,555.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,887.20 : 499,039.20 = 199,820.40 : x
  2. Step 2: Convert to fraction form
    332,887.20/499,039.20 = 199,820.40/x
  3. Step 3: Cross multiply
    332,887.20x = 499,039.20 × 199,820.40
  4. Step 4: Simplify right side
    332,887.20x = 99,718,212,559.68
  5. Step 5: Solve for x
    x = 99,718,212,559.68/332,887.20
  6. Step 6: Final answer
    x = 299,555.56

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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.