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Finding the Fourth Proportional to 161,515, 242,282.22 and 50,707

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Solution

The fourth proportional to 161,515, 242,282.22 and 50,707 is: 76,063.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,515 : 242,282.22 = 50,707 : x
  2. Step 2: Convert to fraction form
    161,515/242,282.22 = 50,707/x
  3. Step 3: Cross multiply
    161,515x = 242,282.22 × 50,707
  4. Step 4: Simplify right side
    161,515x = 12,285,404,529.54
  5. Step 5: Solve for x
    x = 12,285,404,529.54/161,515
  6. Step 6: Final answer
    x = 76,063.55

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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.