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Finding the Fourth Proportional to 323,127.75, 445,926.56 and 202,230.39

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Solution

The fourth proportional to 323,127.75, 445,926.56 and 202,230.39 is: 279,084.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,127.75 : 445,926.56 = 202,230.39 : x
  2. Step 2: Convert to fraction form
    323,127.75/445,926.56 = 202,230.39/x
  3. Step 3: Cross multiply
    323,127.75x = 445,926.56 × 202,230.39
  4. Step 4: Simplify right side
    323,127.75x = 90,179,901,129.01
  5. Step 5: Solve for x
    x = 90,179,901,129.01/323,127.75
  6. Step 6: Final answer
    x = 279,084.36

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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.