Home / 297,163.11-445,744.61-139,391.56

Finding the Fourth Proportional to 297,163.11, 445,744.61 and 139,391.56

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Solution

The fourth proportional to 297,163.11, 445,744.61 and 139,391.56 is: 209,087.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,163.11 : 445,744.61 = 139,391.56 : x
  2. Step 2: Convert to fraction form
    297,163.11/445,744.61 = 139,391.56/x
  3. Step 3: Cross multiply
    297,163.11x = 445,744.61 × 139,391.56
  4. Step 4: Simplify right side
    297,163.11x = 62,133,036,549.49
  5. Step 5: Solve for x
    x = 62,133,036,549.49/297,163.11
  6. Step 6: Final answer
    x = 209,087.31

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1.5x scale

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.