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Finding the Fourth Proportional to 228,219.09, 314,914.90 and 131,454.42

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Solution

The fourth proportional to 228,219.09, 314,914.90 and 131,454.42 is: 181,391.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,219.09 : 314,914.90 = 131,454.42 : x
  2. Step 2: Convert to fraction form
    228,219.09/314,914.90 = 131,454.42/x
  3. Step 3: Cross multiply
    228,219.09x = 314,914.90 × 131,454.42
  4. Step 4: Simplify right side
    228,219.09x = 41,396,954,463.49
  5. Step 5: Solve for x
    x = 41,396,954,463.49/228,219.09
  6. Step 6: Final answer
    x = 181,391.29

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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.