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Finding the Fourth Proportional to 331,504.80, 497,257.20 and 205,533.60

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Solution

The fourth proportional to 331,504.80, 497,257.20 and 205,533.60 is: 308,300.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,504.80 : 497,257.20 = 205,533.60 : x
  2. Step 2: Convert to fraction form
    331,504.80/497,257.20 = 205,533.60/x
  3. Step 3: Cross multiply
    331,504.80x = 497,257.20 × 205,533.60
  4. Step 4: Simplify right side
    331,504.80x = 102,203,062,441.92
  5. Step 5: Solve for x
    x = 102,203,062,441.92/331,504.80
  6. Step 6: Final answer
    x = 308,300.40

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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.