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Finding the Fourth Proportional to 552,615.20, 829,360.20 and 215,817.20

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Solution

The fourth proportional to 552,615.20, 829,360.20 and 215,817.20 is: 323,896.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,615.20 : 829,360.20 = 215,817.20 : x
  2. Step 2: Convert to fraction form
    552,615.20/829,360.20 = 215,817.20/x
  3. Step 3: Cross multiply
    552,615.20x = 829,360.20 × 215,817.20
  4. Step 4: Simplify right side
    552,615.20x = 178,990,196,155.44
  5. Step 5: Solve for x
    x = 178,990,196,155.44/552,615.20
  6. Step 6: Final answer
    x = 323,896.62

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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.