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Finding the Fourth Proportional to 330,298.87, 455,809.93 and 179,396.95

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Solution

The fourth proportional to 330,298.87, 455,809.93 and 179,396.95 is: 247,566.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,298.87 : 455,809.93 = 179,396.95 : x
  2. Step 2: Convert to fraction form
    330,298.87/455,809.93 = 179,396.95/x
  3. Step 3: Cross multiply
    330,298.87x = 455,809.93 × 179,396.95
  4. Step 4: Simplify right side
    330,298.87x = 81,770,911,221.71
  5. Step 5: Solve for x
    x = 81,770,911,221.71/330,298.87
  6. Step 6: Final answer
    x = 247,566.43

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1.5x scale

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.