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Finding the Fourth Proportional to 376,755.18, 519,920.07 and 204,671.78

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Solution

The fourth proportional to 376,755.18, 519,920.07 and 204,671.78 is: 282,445.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,755.18 : 519,920.07 = 204,671.78 : x
  2. Step 2: Convert to fraction form
    376,755.18/519,920.07 = 204,671.78/x
  3. Step 3: Cross multiply
    376,755.18x = 519,920.07 × 204,671.78
  4. Step 4: Simplify right side
    376,755.18x = 106,412,963,585.02
  5. Step 5: Solve for x
    x = 106,412,963,585.02/376,755.18
  6. Step 6: Final answer
    x = 282,445.92

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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.