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Finding the Fourth Proportional to 303,714.20, 455,571.30 and 161,996.60

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Solution

The fourth proportional to 303,714.20, 455,571.30 and 161,996.60 is: 242,994.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,714.20 : 455,571.30 = 161,996.60 : x
  2. Step 2: Convert to fraction form
    303,714.20/455,571.30 = 161,996.60/x
  3. Step 3: Cross multiply
    303,714.20x = 455,571.30 × 161,996.60
  4. Step 4: Simplify right side
    303,714.20x = 73,801,001,657.58
  5. Step 5: Solve for x
    x = 73,801,001,657.58/303,714.20
  6. Step 6: Final answer
    x = 242,994.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.