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Finding the Fourth Proportional to 330,297.87, 455,808.56 and 179,395.95

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Solution

The fourth proportional to 330,297.87, 455,808.56 and 179,395.95 is: 247,565.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,297.87 : 455,808.56 = 179,395.95 : x
  2. Step 2: Convert to fraction form
    330,297.87/455,808.56 = 179,395.95/x
  3. Step 3: Cross multiply
    330,297.87x = 455,808.56 × 179,395.95
  4. Step 4: Simplify right side
    330,297.87x = 81,770,208,742.35
  5. Step 5: Solve for x
    x = 81,770,208,742.35/330,297.87
  6. Step 6: Final answer
    x = 247,565.05

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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.