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Finding the Fourth Proportional to 258,049.60, 386,296.80 and 226,945.60

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Solution

The fourth proportional to 258,049.60, 386,296.80 and 226,945.60 is: 339,734.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,049.60 : 386,296.80 = 226,945.60 : x
  2. Step 2: Convert to fraction form
    258,049.60/386,296.80 = 226,945.60/x
  3. Step 3: Cross multiply
    258,049.60x = 386,296.80 × 226,945.60
  4. Step 4: Simplify right side
    258,049.60x = 87,668,359,054.08
  5. Step 5: Solve for x
    x = 87,668,359,054.08/258,049.60
  6. Step 6: Final answer
    x = 339,734.53

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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.