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Finding the Fourth Proportional to 330,276, 455,778.32 and 179,373

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Solution

The fourth proportional to 330,276, 455,778.32 and 179,373 is: 247,533.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,276 : 455,778.32 = 179,373 : x
  2. Step 2: Convert to fraction form
    330,276/455,778.32 = 179,373/x
  3. Step 3: Cross multiply
    330,276x = 455,778.32 × 179,373
  4. Step 4: Simplify right side
    330,276x = 81,754,324,593.36
  5. Step 5: Solve for x
    x = 81,754,324,593.36/330,276
  6. Step 6: Final answer
    x = 247,533.35

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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.