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Finding the Fourth Proportional to 335,641.61, 503,463.78 and 135,965.78

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Solution

The fourth proportional to 335,641.61, 503,463.78 and 135,965.78 is: 203,949.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,641.61 : 503,463.78 = 135,965.78 : x
  2. Step 2: Convert to fraction form
    335,641.61/503,463.78 = 135,965.78/x
  3. Step 3: Cross multiply
    335,641.61x = 503,463.78 × 135,965.78
  4. Step 4: Simplify right side
    335,641.61x = 68,453,842,352.30
  5. Step 5: Solve for x
    x = 68,453,842,352.30/335,641.61
  6. Step 6: Final answer
    x = 203,949.21

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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.