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Finding the Fourth Proportional to 297,186.57, 445,778.30 and 72,548.19

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Solution

The fourth proportional to 297,186.57, 445,778.30 and 72,548.19 is: 108,821.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,186.57 : 445,778.30 = 72,548.19 : x
  2. Step 2: Convert to fraction form
    297,186.57/445,778.30 = 72,548.19/x
  3. Step 3: Cross multiply
    297,186.57x = 445,778.30 × 72,548.19
  4. Step 4: Simplify right side
    297,186.57x = 32,340,408,443.54
  5. Step 5: Solve for x
    x = 32,340,408,443.54/297,186.57
  6. Step 6: Final answer
    x = 108,821.90

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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.