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Finding the Fourth Proportional to 503,376.40, 755,327.85 and 203,888.62

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Solution

The fourth proportional to 503,376.40, 755,327.85 and 203,888.62 is: 305,939.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,376.40 : 755,327.85 = 203,888.62 : x
  2. Step 2: Convert to fraction form
    503,376.40/755,327.85 = 203,888.62/x
  3. Step 3: Cross multiply
    503,376.40x = 755,327.85 × 203,888.62
  4. Step 4: Simplify right side
    503,376.40x = 154,002,752,984.07
  5. Step 5: Solve for x
    x = 154,002,752,984.07/503,376.40
  6. Step 6: Final answer
    x = 305,939.56

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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.