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Finding the Fourth Proportional to 217,269.60, 325,515.60 and 186,165.60

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Solution

The fourth proportional to 217,269.60, 325,515.60 and 186,165.60 is: 278,915.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,269.60 : 325,515.60 = 186,165.60 : x
  2. Step 2: Convert to fraction form
    217,269.60/325,515.60 = 186,165.60/x
  3. Step 3: Cross multiply
    217,269.60x = 325,515.60 × 186,165.60
  4. Step 4: Simplify right side
    217,269.60x = 60,599,806,983.36
  5. Step 5: Solve for x
    x = 60,599,806,983.36/217,269.60
  6. Step 6: Final answer
    x = 278,915.26

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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.