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Finding the Fourth Proportional to 219,388.40, 302,786.06 and 126,252.22

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Solution

The fourth proportional to 219,388.40, 302,786.06 and 126,252.22 is: 174,245.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,388.40 : 302,786.06 = 126,252.22 : x
  2. Step 2: Convert to fraction form
    219,388.40/302,786.06 = 126,252.22/x
  3. Step 3: Cross multiply
    219,388.40x = 302,786.06 × 126,252.22
  4. Step 4: Simplify right side
    219,388.40x = 38,227,412,260.05
  5. Step 5: Solve for x
    x = 38,227,412,260.05/219,388.40
  6. Step 6: Final answer
    x = 174,245.37

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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.