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Finding the Fourth Proportional to 552,207.20, 828,748.20 and 215,409.20

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Solution

The fourth proportional to 552,207.20, 828,748.20 and 215,409.20 is: 323,284.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,207.20 : 828,748.20 = 215,409.20 : x
  2. Step 2: Convert to fraction form
    552,207.20/828,748.20 = 215,409.20/x
  3. Step 3: Cross multiply
    552,207.20x = 828,748.20 × 215,409.20
  4. Step 4: Simplify right side
    552,207.20x = 178,519,986,763.44
  5. Step 5: Solve for x
    x = 178,519,986,763.44/552,207.20
  6. Step 6: Final answer
    x = 323,284.42

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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.