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Finding the Fourth Proportional to 300,911.18, 451,408.92 and 98,523.11

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Solution

The fourth proportional to 300,911.18, 451,408.92 and 98,523.11 is: 147,798.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,911.18 : 451,408.92 = 98,523.11 : x
  2. Step 2: Convert to fraction form
    300,911.18/451,408.92 = 98,523.11/x
  3. Step 3: Cross multiply
    300,911.18x = 451,408.92 × 98,523.11
  4. Step 4: Simplify right side
    300,911.18x = 44,474,211,000.90
  5. Step 5: Solve for x
    x = 44,474,211,000.90/300,911.18
  6. Step 6: Final answer
    x = 147,798.47

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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.