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Finding the Fourth Proportional to 324,105.60, 485,283.60 and 254,121.60

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Solution

The fourth proportional to 324,105.60, 485,283.60 and 254,121.60 is: 380,496.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,105.60 : 485,283.60 = 254,121.60 : x
  2. Step 2: Convert to fraction form
    324,105.60/485,283.60 = 254,121.60/x
  3. Step 3: Cross multiply
    324,105.60x = 485,283.60 × 254,121.60
  4. Step 4: Simplify right side
    324,105.60x = 123,321,044,885.76
  5. Step 5: Solve for x
    x = 123,321,044,885.76/324,105.60
  6. Step 6: Final answer
    x = 380,496.50

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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.