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Finding the Fourth Proportional to 203,344.08, 305,018.19 and 53,605.86

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Solution

The fourth proportional to 203,344.08, 305,018.19 and 53,605.86 is: 80,409.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,344.08 : 305,018.19 = 53,605.86 : x
  2. Step 2: Convert to fraction form
    203,344.08/305,018.19 = 53,605.86/x
  3. Step 3: Cross multiply
    203,344.08x = 305,018.19 × 53,605.86
  4. Step 4: Simplify right side
    203,344.08x = 16,350,762,390.59
  5. Step 5: Solve for x
    x = 16,350,762,390.59/203,344.08
  6. Step 6: Final answer
    x = 80,409.34

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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.