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Finding the Fourth Proportional to 323,447.60, 485,171.40 and 164,015.30

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Solution

The fourth proportional to 323,447.60, 485,171.40 and 164,015.30 is: 246,022.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,447.60 : 485,171.40 = 164,015.30 : x
  2. Step 2: Convert to fraction form
    323,447.60/485,171.40 = 164,015.30/x
  3. Step 3: Cross multiply
    323,447.60x = 485,171.40 × 164,015.30
  4. Step 4: Simplify right side
    323,447.60x = 79,575,532,722.42
  5. Step 5: Solve for x
    x = 79,575,532,722.42/323,447.60
  6. Step 6: Final answer
    x = 246,022.95

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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.