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Finding the Fourth Proportional to 225,589.70, 311,313.76 and 134,949.48

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Solution

The fourth proportional to 225,589.70, 311,313.76 and 134,949.48 is: 186,230.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,589.70 : 311,313.76 = 134,949.48 : x
  2. Step 2: Convert to fraction form
    225,589.70/311,313.76 = 134,949.48/x
  3. Step 3: Cross multiply
    225,589.70x = 311,313.76 × 134,949.48
  4. Step 4: Simplify right side
    225,589.70x = 42,011,630,028.84
  5. Step 5: Solve for x
    x = 42,011,630,028.84/225,589.70
  6. Step 6: Final answer
    x = 186,230.27

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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.