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Finding the Fourth Proportional to 322,893.20, 484,512.60 and 145,427.60

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Solution

The fourth proportional to 322,893.20, 484,512.60 and 145,427.60 is: 218,219.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,893.20 : 484,512.60 = 145,427.60 : x
  2. Step 2: Convert to fraction form
    322,893.20/484,512.60 = 145,427.60/x
  3. Step 3: Cross multiply
    322,893.20x = 484,512.60 × 145,427.60
  4. Step 4: Simplify right side
    322,893.20x = 70,461,504,587.76
  5. Step 5: Solve for x
    x = 70,461,504,587.76/322,893.20
  6. Step 6: Final answer
    x = 218,219.23

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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.