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Finding the Fourth Proportional to 323,605.67, 445,559.54 and 275,112.18

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Solution

The fourth proportional to 323,605.67, 445,559.54 and 275,112.18 is: 378,790.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,605.67 : 445,559.54 = 275,112.18 : x
  2. Step 2: Convert to fraction form
    323,605.67/445,559.54 = 275,112.18/x
  3. Step 3: Cross multiply
    323,605.67x = 445,559.54 × 275,112.18
  4. Step 4: Simplify right side
    323,605.67x = 122,578,854,993.64
  5. Step 5: Solve for x
    x = 122,578,854,993.64/323,605.67
  6. Step 6: Final answer
    x = 378,790.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.