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Finding the Fourth Proportional to 323,737.60, 485,606.40 and 199,148.80

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Solution

The fourth proportional to 323,737.60, 485,606.40 and 199,148.80 is: 298,723.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,737.60 : 485,606.40 = 199,148.80 : x
  2. Step 2: Convert to fraction form
    323,737.60/485,606.40 = 199,148.80/x
  3. Step 3: Cross multiply
    323,737.60x = 485,606.40 × 199,148.80
  4. Step 4: Simplify right side
    323,737.60x = 96,707,931,832.32
  5. Step 5: Solve for x
    x = 96,707,931,832.32/323,737.60
  6. Step 6: Final answer
    x = 298,723.20

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