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Finding the Fourth Proportional to 271,717.20, 407,575.80 and 171,552.60

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Solution

The fourth proportional to 271,717.20, 407,575.80 and 171,552.60 is: 257,328.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,717.20 : 407,575.80 = 171,552.60 : x
  2. Step 2: Convert to fraction form
    271,717.20/407,575.80 = 171,552.60/x
  3. Step 3: Cross multiply
    271,717.20x = 407,575.80 × 171,552.60
  4. Step 4: Simplify right side
    271,717.20x = 69,920,688,187.08
  5. Step 5: Solve for x
    x = 69,920,688,187.08/271,717.20
  6. Step 6: Final answer
    x = 257,328.90

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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.