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Finding the Fourth Proportional to 557,115.78, 836,005.67 and 202,157.49

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Solution

The fourth proportional to 557,115.78, 836,005.67 and 202,157.49 is: 303,356.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,115.78 : 836,005.67 = 202,157.49 : x
  2. Step 2: Convert to fraction form
    557,115.78/836,005.67 = 202,157.49/x
  3. Step 3: Cross multiply
    557,115.78x = 836,005.67 × 202,157.49
  4. Step 4: Simplify right side
    557,115.78x = 169,004,807,872.97
  5. Step 5: Solve for x
    x = 169,004,807,872.97/557,115.78
  6. Step 6: Final answer
    x = 303,356.71

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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.