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Finding the Fourth Proportional to 225,580.50, 311,301.16 and 134,940.29

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Solution

The fourth proportional to 225,580.50, 311,301.16 and 134,940.29 is: 186,217.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,580.50 : 311,301.16 = 134,940.29 : x
  2. Step 2: Convert to fraction form
    225,580.50/311,301.16 = 134,940.29/x
  3. Step 3: Cross multiply
    225,580.50x = 311,301.16 × 134,940.29
  4. Step 4: Simplify right side
    225,580.50x = 42,007,066,913.88
  5. Step 5: Solve for x
    x = 42,007,066,913.88/225,580.50
  6. Step 6: Final answer
    x = 186,217.63

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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.