Home / 225,608.85-311,331.09-134,911.35

Finding the Fourth Proportional to 225,608.85, 311,331.09 and 134,911.35

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Solution

The fourth proportional to 225,608.85, 311,331.09 and 134,911.35 is: 186,172.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,608.85 : 311,331.09 = 134,911.35 : x
  2. Step 2: Convert to fraction form
    225,608.85/311,331.09 = 134,911.35/x
  3. Step 3: Cross multiply
    225,608.85x = 311,331.09 × 134,911.35
  4. Step 4: Simplify right side
    225,608.85x = 42,002,097,648.87
  5. Step 5: Solve for x
    x = 42,002,097,648.87/225,608.85
  6. Step 6: Final answer
    x = 186,172.21

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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.