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Finding the Fourth Proportional to 222,247, 306,640.26 and 126,718.84

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Solution

The fourth proportional to 222,247, 306,640.26 and 126,718.84 is: 174,837.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,247 : 306,640.26 = 126,718.84 : x
  2. Step 2: Convert to fraction form
    222,247/306,640.26 = 126,718.84/x
  3. Step 3: Cross multiply
    222,247x = 306,640.26 × 126,718.84
  4. Step 4: Simplify right side
    222,247x = 38,857,098,044.50
  5. Step 5: Solve for x
    x = 38,857,098,044.50/222,247
  6. Step 6: Final answer
    x = 174,837.45

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1.5x scale

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.