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Finding the Fourth Proportional to 207,246.40, 310,869.60 and 67,105.60

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Solution

The fourth proportional to 207,246.40, 310,869.60 and 67,105.60 is: 100,658.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,246.40 : 310,869.60 = 67,105.60 : x
  2. Step 2: Convert to fraction form
    207,246.40/310,869.60 = 67,105.60/x
  3. Step 3: Cross multiply
    207,246.40x = 310,869.60 × 67,105.60
  4. Step 4: Simplify right side
    207,246.40x = 20,861,091,029.76
  5. Step 5: Solve for x
    x = 20,861,091,029.76/207,246.40
  6. Step 6: Final answer
    x = 100,658.40

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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.