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Finding the Fourth Proportional to 450,690.92, 675,996.06 and 135,218.28

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Solution

The fourth proportional to 450,690.92, 675,996.06 and 135,218.28 is: 202,815.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,690.92 : 675,996.06 = 135,218.28 : x
  2. Step 2: Convert to fraction form
    450,690.92/675,996.06 = 135,218.28/x
  3. Step 3: Cross multiply
    450,690.92x = 675,996.06 × 135,218.28
  4. Step 4: Simplify right side
    450,690.92x = 91,407,024,519.98
  5. Step 5: Solve for x
    x = 91,407,024,519.98/450,690.92
  6. Step 6: Final answer
    x = 202,815.32

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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.