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Finding the Fourth Proportional to 300,770.29, 451,155.77 and 90,408.22

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Solution

The fourth proportional to 300,770.29, 451,155.77 and 90,408.22 is: 135,612.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,770.29 : 451,155.77 = 90,408.22 : x
  2. Step 2: Convert to fraction form
    300,770.29/451,155.77 = 90,408.22/x
  3. Step 3: Cross multiply
    300,770.29x = 451,155.77 × 90,408.22
  4. Step 4: Simplify right side
    300,770.29x = 40,788,191,405.28
  5. Step 5: Solve for x
    x = 40,788,191,405.28/300,770.29
  6. Step 6: Final answer
    x = 135,612.44

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Similar ratio
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1.5x scale

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.