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Finding the Fourth Proportional to 636,146.80, 954,219.59 and 162,831.40

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Solution

The fourth proportional to 636,146.80, 954,219.59 and 162,831.40 is: 244,246.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,146.80 : 954,219.59 = 162,831.40 : x
  2. Step 2: Convert to fraction form
    636,146.80/954,219.59 = 162,831.40/x
  3. Step 3: Cross multiply
    636,146.80x = 954,219.59 × 162,831.40
  4. Step 4: Simplify right side
    636,146.80x = 155,376,906,161.87
  5. Step 5: Solve for x
    x = 155,376,906,161.87/636,146.80
  6. Step 6: Final answer
    x = 244,246.94

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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.