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Finding the Fourth Proportional to 203,402.88, 280,704.33 and 117,388.17

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Solution

The fourth proportional to 203,402.88, 280,704.33 and 117,388.17 is: 162,000.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,402.88 : 280,704.33 = 117,388.17 : x
  2. Step 2: Convert to fraction form
    203,402.88/280,704.33 = 117,388.17/x
  3. Step 3: Cross multiply
    203,402.88x = 280,704.33 × 117,388.17
  4. Step 4: Simplify right side
    203,402.88x = 32,951,367,609.78
  5. Step 5: Solve for x
    x = 32,951,367,609.78/203,402.88
  6. Step 6: Final answer
    x = 162,000.50

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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.