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Finding the Fourth Proportional to 376,730, 519,887.61 and 206,975.06

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Solution

The fourth proportional to 376,730, 519,887.61 and 206,975.06 is: 285,625.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,730 : 519,887.61 = 206,975.06 : x
  2. Step 2: Convert to fraction form
    376,730/519,887.61 = 206,975.06/x
  3. Step 3: Cross multiply
    376,730x = 519,887.61 × 206,975.06
  4. Step 4: Simplify right side
    376,730x = 107,603,769,273.01
  5. Step 5: Solve for x
    x = 107,603,769,273.01/376,730
  6. Step 6: Final answer
    x = 285,625.70

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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.