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Finding the Fourth Proportional to 227,039.40, 313,266.60 and 131,540.40

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Solution

The fourth proportional to 227,039.40, 313,266.60 and 131,540.40 is: 181,498.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,039.40 : 313,266.60 = 131,540.40 : x
  2. Step 2: Convert to fraction form
    227,039.40/313,266.60 = 131,540.40/x
  3. Step 3: Cross multiply
    227,039.40x = 313,266.60 × 131,540.40
  4. Step 4: Simplify right side
    227,039.40x = 41,207,213,870.64
  5. Step 5: Solve for x
    x = 41,207,213,870.64/227,039.40
  6. Step 6: Final answer
    x = 181,498.07

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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.