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Finding the Fourth Proportional to 636,147.28, 954,220.32 and 162,831.88

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Solution

The fourth proportional to 636,147.28, 954,220.32 and 162,831.88 is: 244,247.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,147.28 : 954,220.32 = 162,831.88 : x
  2. Step 2: Convert to fraction form
    636,147.28/954,220.32 = 162,831.88/x
  3. Step 3: Cross multiply
    636,147.28x = 954,220.32 × 162,831.88
  4. Step 4: Simplify right side
    636,147.28x = 155,377,488,639.80
  5. Step 5: Solve for x
    x = 155,377,488,639.80/636,147.28
  6. Step 6: Final answer
    x = 244,247.67

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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.