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Finding the Fourth Proportional to 330,299.87, 455,811.32 and 179,397.95

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Solution

The fourth proportional to 330,299.87, 455,811.32 and 179,397.95 is: 247,567.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,299.87 : 455,811.32 = 179,397.95 : x
  2. Step 2: Convert to fraction form
    330,299.87/455,811.32 = 179,397.95/x
  3. Step 3: Cross multiply
    330,299.87x = 455,811.32 × 179,397.95
  4. Step 4: Simplify right side
    330,299.87x = 81,771,615,497.80
  5. Step 5: Solve for x
    x = 81,771,615,497.80/330,299.87
  6. Step 6: Final answer
    x = 247,567.81

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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.