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Finding the Fourth Proportional to 300,073.08, 450,213.30 and 113,138.04

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Solution

The fourth proportional to 300,073.08, 450,213.30 and 113,138.04 is: 169,746.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,073.08 : 450,213.30 = 113,138.04 : x
  2. Step 2: Convert to fraction form
    300,073.08/450,213.30 = 113,138.04/x
  3. Step 3: Cross multiply
    300,073.08x = 450,213.30 × 113,138.04
  4. Step 4: Simplify right side
    300,073.08x = 50,936,250,343.93
  5. Step 5: Solve for x
    x = 50,936,250,343.93/300,073.08
  6. Step 6: Final answer
    x = 169,746.15

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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.