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Finding the Fourth Proportional to 366,532.72, 505,806.60 and 215,639.44

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Solution

The fourth proportional to 366,532.72, 505,806.60 and 215,639.44 is: 297,577.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,532.72 : 505,806.60 = 215,639.44 : x
  2. Step 2: Convert to fraction form
    366,532.72/505,806.60 = 215,639.44/x
  3. Step 3: Cross multiply
    366,532.72x = 505,806.60 × 215,639.44
  4. Step 4: Simplify right side
    366,532.72x = 109,071,851,972.30
  5. Step 5: Solve for x
    x = 109,071,851,972.30/366,532.72
  6. Step 6: Final answer
    x = 297,577.39

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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.