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Finding the Fourth Proportional to 271,940.40, 407,910.60 and 153,842.40

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Solution

The fourth proportional to 271,940.40, 407,910.60 and 153,842.40 is: 230,763.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,940.40 : 407,910.60 = 153,842.40 : x
  2. Step 2: Convert to fraction form
    271,940.40/407,910.60 = 153,842.40/x
  3. Step 3: Cross multiply
    271,940.40x = 407,910.60 × 153,842.40
  4. Step 4: Simplify right side
    271,940.40x = 62,753,945,689.44
  5. Step 5: Solve for x
    x = 62,753,945,689.44/271,940.40
  6. Step 6: Final answer
    x = 230,763.60

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1.5x scale

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.