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Finding the Fourth Proportional to 300,212.57, 450,318.31 and 97,808.44

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Solution

The fourth proportional to 300,212.57, 450,318.31 and 97,808.44 is: 146,712.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,212.57 : 450,318.31 = 97,808.44 : x
  2. Step 2: Convert to fraction form
    300,212.57/450,318.31 = 97,808.44/x
  3. Step 3: Cross multiply
    300,212.57x = 450,318.31 × 97,808.44
  4. Step 4: Simplify right side
    300,212.57x = 44,044,931,112.11
  5. Step 5: Solve for x
    x = 44,044,931,112.11/300,212.57
  6. Step 6: Final answer
    x = 146,712.48

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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.