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Finding the Fourth Proportional to 217,753.60, 300,532.80 and 132,919.84

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Solution

The fourth proportional to 217,753.60, 300,532.80 and 132,919.84 is: 183,449.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,753.60 : 300,532.80 = 132,919.84 : x
  2. Step 2: Convert to fraction form
    217,753.60/300,532.80 = 132,919.84/x
  3. Step 3: Cross multiply
    217,753.60x = 300,532.80 × 132,919.84
  4. Step 4: Simplify right side
    217,753.60x = 39,946,771,690.75
  5. Step 5: Solve for x
    x = 39,946,771,690.75/217,753.60
  6. Step 6: Final answer
    x = 183,449.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.