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Finding the Fourth Proportional to 322,737.75, 445,378.10 and 188,601.75

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Solution

The fourth proportional to 322,737.75, 445,378.10 and 188,601.75 is: 260,270.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,737.75 : 445,378.10 = 188,601.75 : x
  2. Step 2: Convert to fraction form
    322,737.75/445,378.10 = 188,601.75/x
  3. Step 3: Cross multiply
    322,737.75x = 445,378.10 × 188,601.75
  4. Step 4: Simplify right side
    322,737.75x = 83,999,088,128.67
  5. Step 5: Solve for x
    x = 83,999,088,128.67/322,737.75
  6. Step 6: Final answer
    x = 260,270.42

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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.