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Finding the Fourth Proportional to 203,487.86, 280,755.87 and 160,333.55

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Solution

The fourth proportional to 203,487.86, 280,755.87 and 160,333.55 is: 221,215.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,487.86 : 280,755.87 = 160,333.55 : x
  2. Step 2: Convert to fraction form
    203,487.86/280,755.87 = 160,333.55/x
  3. Step 3: Cross multiply
    203,487.86x = 280,755.87 × 160,333.55
  4. Step 4: Simplify right side
    203,487.86x = 45,014,585,320.44
  5. Step 5: Solve for x
    x = 45,014,585,320.44/203,487.86
  6. Step 6: Final answer
    x = 221,215.09

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1.5x scale

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.