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Finding the Fourth Proportional to 245,946.40, 368,919.60 and 88,190.80

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Solution

The fourth proportional to 245,946.40, 368,919.60 and 88,190.80 is: 132,286.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,946.40 : 368,919.60 = 88,190.80 : x
  2. Step 2: Convert to fraction form
    245,946.40/368,919.60 = 88,190.80/x
  3. Step 3: Cross multiply
    245,946.40x = 368,919.60 × 88,190.80
  4. Step 4: Simplify right side
    245,946.40x = 32,535,314,659.68
  5. Step 5: Solve for x
    x = 32,535,314,659.68/245,946.40
  6. Step 6: Final answer
    x = 132,286.20

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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.