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Finding the Fourth Proportional to 330,412.44, 455,960.30 and 194,454.39

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Solution

The fourth proportional to 330,412.44, 455,960.30 and 194,454.39 is: 268,341.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,412.44 : 455,960.30 = 194,454.39 : x
  2. Step 2: Convert to fraction form
    330,412.44/455,960.30 = 194,454.39/x
  3. Step 3: Cross multiply
    330,412.44x = 455,960.30 × 194,454.39
  4. Step 4: Simplify right side
    330,412.44x = 88,663,481,028.45
  5. Step 5: Solve for x
    x = 88,663,481,028.45/330,412.44
  6. Step 6: Final answer
    x = 268,341.84

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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.