Home / 217,531.08-300,192.84-126,949.32

Finding the Fourth Proportional to 217,531.08, 300,192.84 and 126,949.32

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Solution

The fourth proportional to 217,531.08, 300,192.84 and 126,949.32 is: 175,190.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,531.08 : 300,192.84 = 126,949.32 : x
  2. Step 2: Convert to fraction form
    217,531.08/300,192.84 = 126,949.32/x
  3. Step 3: Cross multiply
    217,531.08x = 300,192.84 × 126,949.32
  4. Step 4: Simplify right side
    217,531.08x = 38,109,276,906.87
  5. Step 5: Solve for x
    x = 38,109,276,906.87/217,531.08
  6. Step 6: Final answer
    x = 175,190.03

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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.