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Finding the Fourth Proportional to 203,245.20, 304,900.20 and 84,855.60

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Solution

The fourth proportional to 203,245.20, 304,900.20 and 84,855.60 is: 127,296.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,245.20 : 304,900.20 = 84,855.60 : x
  2. Step 2: Convert to fraction form
    203,245.20/304,900.20 = 84,855.60/x
  3. Step 3: Cross multiply
    203,245.20x = 304,900.20 × 84,855.60
  4. Step 4: Simplify right side
    203,245.20x = 25,872,489,411.12
  5. Step 5: Solve for x
    x = 25,872,489,411.12/203,245.20
  6. Step 6: Final answer
    x = 127,296.93

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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.