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Finding the Fourth Proportional to 303,589.89, 455,392.13 and 103,908.96

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Solution

The fourth proportional to 303,589.89, 455,392.13 and 103,908.96 is: 155,865.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,589.89 : 455,392.13 = 103,908.96 : x
  2. Step 2: Convert to fraction form
    303,589.89/455,392.13 = 103,908.96/x
  3. Step 3: Cross multiply
    303,589.89x = 455,392.13 × 103,908.96
  4. Step 4: Simplify right side
    303,589.89x = 47,319,322,100.94
  5. Step 5: Solve for x
    x = 47,319,322,100.94/303,589.89
  6. Step 6: Final answer
    x = 155,865.94

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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.