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Finding the Fourth Proportional to 301,135.59, 451,770.21 and 90,758.34

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Solution

The fourth proportional to 301,135.59, 451,770.21 and 90,758.34 is: 136,157.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,135.59 : 451,770.21 = 90,758.34 : x
  2. Step 2: Convert to fraction form
    301,135.59/451,770.21 = 90,758.34/x
  3. Step 3: Cross multiply
    301,135.59x = 451,770.21 × 90,758.34
  4. Step 4: Simplify right side
    301,135.59x = 41,001,914,321.05
  5. Step 5: Solve for x
    x = 41,001,914,321.05/301,135.59
  6. Step 6: Final answer
    x = 136,157.65

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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.