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Finding the Fourth Proportional to 330,144.92, 456,012.28 and 254,581.64

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Solution

The fourth proportional to 330,144.92, 456,012.28 and 254,581.64 is: 351,640.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,144.92 : 456,012.28 = 254,581.64 : x
  2. Step 2: Convert to fraction form
    330,144.92/456,012.28 = 254,581.64/x
  3. Step 3: Cross multiply
    330,144.92x = 456,012.28 × 254,581.64
  4. Step 4: Simplify right side
    330,144.92x = 116,092,354,102.54
  5. Step 5: Solve for x
    x = 116,092,354,102.54/330,144.92
  6. Step 6: Final answer
    x = 351,640.59

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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.