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Finding the Fourth Proportional to 636,131.30, 954,196.34 and 162,815.90

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Solution

The fourth proportional to 636,131.30, 954,196.34 and 162,815.90 is: 244,223.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,131.30 : 954,196.34 = 162,815.90 : x
  2. Step 2: Convert to fraction form
    636,131.30/954,196.34 = 162,815.90/x
  3. Step 3: Cross multiply
    636,131.30x = 954,196.34 × 162,815.90
  4. Step 4: Simplify right side
    636,131.30x = 155,358,330,288.75
  5. Step 5: Solve for x
    x = 155,358,330,288.75/636,131.30
  6. Step 6: Final answer
    x = 244,223.69

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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.