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Finding the Fourth Proportional to 243,558.32, 335,892.08 and 202,857.56

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Solution

The fourth proportional to 243,558.32, 335,892.08 and 202,857.56 is: 279,761.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,558.32 : 335,892.08 = 202,857.56 : x
  2. Step 2: Convert to fraction form
    243,558.32/335,892.08 = 202,857.56/x
  3. Step 3: Cross multiply
    243,558.32x = 335,892.08 × 202,857.56
  4. Step 4: Simplify right side
    243,558.32x = 68,138,247,772.12
  5. Step 5: Solve for x
    x = 68,138,247,772.12/243,558.32
  6. Step 6: Final answer
    x = 279,761.53

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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.