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Finding the Fourth Proportional to 227,431.74, 313,912.08 and 154,954.56

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Solution

The fourth proportional to 227,431.74, 313,912.08 and 154,954.56 is: 213,875.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,431.74 : 313,912.08 = 154,954.56 : x
  2. Step 2: Convert to fraction form
    227,431.74/313,912.08 = 154,954.56/x
  3. Step 3: Cross multiply
    227,431.74x = 313,912.08 × 154,954.56
  4. Step 4: Simplify right side
    227,431.74x = 48,642,108,235.08
  5. Step 5: Solve for x
    x = 48,642,108,235.08/227,431.74
  6. Step 6: Final answer
    x = 213,875.64

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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.