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Finding the Fourth Proportional to 381,351.30, 572,610.15 and 223,887.30

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Solution

The fourth proportional to 381,351.30, 572,610.15 and 223,887.30 is: 336,173.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,351.30 : 572,610.15 = 223,887.30 : x
  2. Step 2: Convert to fraction form
    381,351.30/572,610.15 = 223,887.30/x
  3. Step 3: Cross multiply
    381,351.30x = 572,610.15 × 223,887.30
  4. Step 4: Simplify right side
    381,351.30x = 128,200,140,436.10
  5. Step 5: Solve for x
    x = 128,200,140,436.10/381,351.30
  6. Step 6: Final answer
    x = 336,173.34

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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.