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Finding the Fourth Proportional to 224,249.74, 309,460.68 and 122,276

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Solution

The fourth proportional to 224,249.74, 309,460.68 and 122,276 is: 168,738.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,249.74 : 309,460.68 = 122,276 : x
  2. Step 2: Convert to fraction form
    224,249.74/309,460.68 = 122,276/x
  3. Step 3: Cross multiply
    224,249.74x = 309,460.68 × 122,276
  4. Step 4: Simplify right side
    224,249.74x = 37,839,614,107.68
  5. Step 5: Solve for x
    x = 37,839,614,107.68/224,249.74
  6. Step 6: Final answer
    x = 168,738.72

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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.