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Finding the Fourth Proportional to 203,310.40, 304,965.60 and 55,566.40

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Solution

The fourth proportional to 203,310.40, 304,965.60 and 55,566.40 is: 83,349.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,310.40 : 304,965.60 = 55,566.40 : x
  2. Step 2: Convert to fraction form
    203,310.40/304,965.60 = 55,566.40/x
  3. Step 3: Cross multiply
    203,310.40x = 304,965.60 × 55,566.40
  4. Step 4: Simplify right side
    203,310.40x = 16,945,840,515.84
  5. Step 5: Solve for x
    x = 16,945,840,515.84/203,310.40
  6. Step 6: Final answer
    x = 83,349.60

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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.