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Finding the Fourth Proportional to 226,408.88, 312,447.12 and 124,445.45

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Solution

The fourth proportional to 226,408.88, 312,447.12 and 124,445.45 is: 171,736.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,408.88 : 312,447.12 = 124,445.45 : x
  2. Step 2: Convert to fraction form
    226,408.88/312,447.12 = 124,445.45/x
  3. Step 3: Cross multiply
    226,408.88x = 312,447.12 × 124,445.45
  4. Step 4: Simplify right side
    226,408.88x = 38,882,622,449.60
  5. Step 5: Solve for x
    x = 38,882,622,449.60/226,408.88
  6. Step 6: Final answer
    x = 171,736.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.