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Finding the Fourth Proportional to 330,491.36, 456,078.12 and 179,588

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Solution

The fourth proportional to 330,491.36, 456,078.12 and 179,588 is: 247,831.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,491.36 : 456,078.12 = 179,588 : x
  2. Step 2: Convert to fraction form
    330,491.36/456,078.12 = 179,588/x
  3. Step 3: Cross multiply
    330,491.36x = 456,078.12 × 179,588
  4. Step 4: Simplify right side
    330,491.36x = 81,906,157,414.56
  5. Step 5: Solve for x
    x = 81,906,157,414.56/330,491.36
  6. Step 6: Final answer
    x = 247,831.46

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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.