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Finding the Fourth Proportional to 376,490.84, 519,565.74 and 206,725.64

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Solution

The fourth proportional to 376,490.84, 519,565.74 and 206,725.64 is: 285,285.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,490.84 : 519,565.74 = 206,725.64 : x
  2. Step 2: Convert to fraction form
    376,490.84/519,565.74 = 206,725.64/x
  3. Step 3: Cross multiply
    376,490.84x = 519,565.74 × 206,725.64
  4. Step 4: Simplify right side
    376,490.84x = 107,407,560,123.57
  5. Step 5: Solve for x
    x = 107,407,560,123.57/376,490.84
  6. Step 6: Final answer
    x = 285,285.98

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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.