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Finding the Fourth Proportional to 203,604.22, 280,987.11 and 117,566.83

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Solution

The fourth proportional to 203,604.22, 280,987.11 and 117,566.83 is: 162,249.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,604.22 : 280,987.11 = 117,566.83 : x
  2. Step 2: Convert to fraction form
    203,604.22/280,987.11 = 117,566.83/x
  3. Step 3: Cross multiply
    203,604.22x = 280,987.11 × 117,566.83
  4. Step 4: Simplify right side
    203,604.22x = 33,034,761,800.79
  5. Step 5: Solve for x
    x = 33,034,761,800.79/203,604.22
  6. Step 6: Final answer
    x = 162,249.89

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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.