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Finding the Fourth Proportional to 394,465.60, 591,374.40 and 169,998.40

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Solution

The fourth proportional to 394,465.60, 591,374.40 and 169,998.40 is: 254,857.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,465.60 : 591,374.40 = 169,998.40 : x
  2. Step 2: Convert to fraction form
    394,465.60/591,374.40 = 169,998.40/x
  3. Step 3: Cross multiply
    394,465.60x = 591,374.40 × 169,998.40
  4. Step 4: Simplify right side
    394,465.60x = 100,532,701,800.96
  5. Step 5: Solve for x
    x = 100,532,701,800.96/394,465.60
  6. Step 6: Final answer
    x = 254,857.97

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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.