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Finding the Fourth Proportional to 330,145.88, 455,601.31 and 179,242.88

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Solution

The fourth proportional to 330,145.88, 455,601.31 and 179,242.88 is: 247,355.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,145.88 : 455,601.31 = 179,242.88 : x
  2. Step 2: Convert to fraction form
    330,145.88/455,601.31 = 179,242.88/x
  3. Step 3: Cross multiply
    330,145.88x = 455,601.31 × 179,242.88
  4. Step 4: Simplify right side
    330,145.88x = 81,663,288,210.06
  5. Step 5: Solve for x
    x = 81,663,288,210.06/330,145.88
  6. Step 6: Final answer
    x = 247,355.17

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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.