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Finding the Fourth Proportional to 226,465.20, 339,697.80 and 121,489.20

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Solution

The fourth proportional to 226,465.20, 339,697.80 and 121,489.20 is: 182,233.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,465.20 : 339,697.80 = 121,489.20 : x
  2. Step 2: Convert to fraction form
    226,465.20/339,697.80 = 121,489.20/x
  3. Step 3: Cross multiply
    226,465.20x = 339,697.80 × 121,489.20
  4. Step 4: Simplify right side
    226,465.20x = 41,269,613,963.76
  5. Step 5: Solve for x
    x = 41,269,613,963.76/226,465.20
  6. Step 6: Final answer
    x = 182,233.80

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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.