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Finding the Fourth Proportional to 323,079.01, 445,841.64 and 202,286.90

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Solution

The fourth proportional to 323,079.01, 445,841.64 and 202,286.90 is: 279,151.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,079.01 : 445,841.64 = 202,286.90 : x
  2. Step 2: Convert to fraction form
    323,079.01/445,841.64 = 202,286.90/x
  3. Step 3: Cross multiply
    323,079.01x = 445,841.64 × 202,286.90
  4. Step 4: Simplify right side
    323,079.01x = 90,187,921,017.31
  5. Step 5: Solve for x
    x = 90,187,921,017.31/323,079.01
  6. Step 6: Final answer
    x = 279,151.29

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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.