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Finding the Fourth Proportional to 271,911.20, 407,866.80 and 122,223.20

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Solution

The fourth proportional to 271,911.20, 407,866.80 and 122,223.20 is: 183,334.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,911.20 : 407,866.80 = 122,223.20 : x
  2. Step 2: Convert to fraction form
    271,911.20/407,866.80 = 122,223.20/x
  3. Step 3: Cross multiply
    271,911.20x = 407,866.80 × 122,223.20
  4. Step 4: Simplify right side
    271,911.20x = 49,850,785,469.76
  5. Step 5: Solve for x
    x = 49,850,785,469.76/271,911.20
  6. Step 6: Final answer
    x = 183,334.80

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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.