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Finding the Fourth Proportional to 323,572, 485,453.76 and 165,911.08

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Solution

The fourth proportional to 323,572, 485,453.76 and 165,911.08 is: 248,915.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,572 : 485,453.76 = 165,911.08 : x
  2. Step 2: Convert to fraction form
    323,572/485,453.76 = 165,911.08/x
  3. Step 3: Cross multiply
    323,572x = 485,453.76 × 165,911.08
  4. Step 4: Simplify right side
    323,572x = 80,542,157,611.66
  5. Step 5: Solve for x
    x = 80,542,157,611.66/323,572
  6. Step 6: Final answer
    x = 248,915.72

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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.