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Finding the Fourth Proportional to 322,835.76, 445,347.36 and 188,622

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Solution

The fourth proportional to 322,835.76, 445,347.36 and 188,622 is: 260,201.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,835.76 : 445,347.36 = 188,622 : x
  2. Step 2: Convert to fraction form
    322,835.76/445,347.36 = 188,622/x
  3. Step 3: Cross multiply
    322,835.76x = 445,347.36 × 188,622
  4. Step 4: Simplify right side
    322,835.76x = 84,002,309,737.92
  5. Step 5: Solve for x
    x = 84,002,309,737.92/322,835.76
  6. Step 6: Final answer
    x = 260,201.38

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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.