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Finding the Fourth Proportional to 351,337.26, 484,902.83 and 215,446

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Solution

The fourth proportional to 351,337.26, 484,902.83 and 215,446 is: 297,350.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,337.26 : 484,902.83 = 215,446 : x
  2. Step 2: Convert to fraction form
    351,337.26/484,902.83 = 215,446/x
  3. Step 3: Cross multiply
    351,337.26x = 484,902.83 × 215,446
  4. Step 4: Simplify right side
    351,337.26x = 104,470,375,112.18
  5. Step 5: Solve for x
    x = 104,470,375,112.18/351,337.26
  6. Step 6: Final answer
    x = 297,350.69

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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.