Home / 445,734.16-668,699.68-165,251.42

Finding the Fourth Proportional to 445,734.16, 668,699.68 and 165,251.42

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Solution

The fourth proportional to 445,734.16, 668,699.68 and 165,251.42 is: 247,913.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,734.16 : 668,699.68 = 165,251.42 : x
  2. Step 2: Convert to fraction form
    445,734.16/668,699.68 = 165,251.42/x
  3. Step 3: Cross multiply
    445,734.16x = 668,699.68 × 165,251.42
  4. Step 4: Simplify right side
    445,734.16x = 110,503,571,673.55
  5. Step 5: Solve for x
    x = 110,503,571,673.55/445,734.16
  6. Step 6: Final answer
    x = 247,913.63

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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.