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Finding the Fourth Proportional to 366,906.60, 550,359.90 and 266,855.40

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Solution

The fourth proportional to 366,906.60, 550,359.90 and 266,855.40 is: 400,283.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,906.60 : 550,359.90 = 266,855.40 : x
  2. Step 2: Convert to fraction form
    366,906.60/550,359.90 = 266,855.40/x
  3. Step 3: Cross multiply
    366,906.60x = 550,359.90 × 266,855.40
  4. Step 4: Simplify right side
    366,906.60x = 146,866,511,258.46
  5. Step 5: Solve for x
    x = 146,866,511,258.46/366,906.60
  6. Step 6: Final answer
    x = 400,283.10

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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.