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Finding the Fourth Proportional to 308,138.40, 462,337.20 and 167,997.60

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Solution

The fourth proportional to 308,138.40, 462,337.20 and 167,997.60 is: 252,067.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,138.40 : 462,337.20 = 167,997.60 : x
  2. Step 2: Convert to fraction form
    308,138.40/462,337.20 = 167,997.60/x
  3. Step 3: Cross multiply
    308,138.40x = 462,337.20 × 167,997.60
  4. Step 4: Simplify right side
    308,138.40x = 77,671,539,990.72
  5. Step 5: Solve for x
    x = 77,671,539,990.72/308,138.40
  6. Step 6: Final answer
    x = 252,067.06

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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.