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Finding the Fourth Proportional to 270,801.20, 406,201.80 and 266,135.60

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Solution

The fourth proportional to 270,801.20, 406,201.80 and 266,135.60 is: 399,203.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,801.20 : 406,201.80 = 266,135.60 : x
  2. Step 2: Convert to fraction form
    270,801.20/406,201.80 = 266,135.60/x
  3. Step 3: Cross multiply
    270,801.20x = 406,201.80 × 266,135.60
  4. Step 4: Simplify right side
    270,801.20x = 108,104,759,764.08
  5. Step 5: Solve for x
    x = 108,104,759,764.08/270,801.20
  6. Step 6: Final answer
    x = 399,203.40

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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.