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Finding the Fourth Proportional to 202,418.70, 303,628.05 and 199,308.30

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Solution

The fourth proportional to 202,418.70, 303,628.05 and 199,308.30 is: 298,962.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,418.70 : 303,628.05 = 199,308.30 : x
  2. Step 2: Convert to fraction form
    202,418.70/303,628.05 = 199,308.30/x
  3. Step 3: Cross multiply
    202,418.70x = 303,628.05 × 199,308.30
  4. Step 4: Simplify right side
    202,418.70x = 60,515,590,477.82
  5. Step 5: Solve for x
    x = 60,515,590,477.82/202,418.70
  6. Step 6: Final answer
    x = 298,962.45

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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.