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Finding the Fourth Proportional to 270,930.60, 405,618.30 and 165,954.60

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Solution

The fourth proportional to 270,930.60, 405,618.30 and 165,954.60 is: 248,455.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,930.60 : 405,618.30 = 165,954.60 : x
  2. Step 2: Convert to fraction form
    270,930.60/405,618.30 = 165,954.60/x
  3. Step 3: Cross multiply
    270,930.60x = 405,618.30 × 165,954.60
  4. Step 4: Simplify right side
    270,930.60x = 67,314,222,729.18
  5. Step 5: Solve for x
    x = 67,314,222,729.18/270,930.60
  6. Step 6: Final answer
    x = 248,455.59

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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.