Home / 227,215.76-313,520.73-131,703.80

Finding the Fourth Proportional to 227,215.76, 313,520.73 and 131,703.80

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Solution

The fourth proportional to 227,215.76, 313,520.73 and 131,703.80 is: 181,729.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,215.76 : 313,520.73 = 131,703.80 : x
  2. Step 2: Convert to fraction form
    227,215.76/313,520.73 = 131,703.80/x
  3. Step 3: Cross multiply
    227,215.76x = 313,520.73 × 131,703.80
  4. Step 4: Simplify right side
    227,215.76x = 41,291,871,519.77
  5. Step 5: Solve for x
    x = 41,291,871,519.77/227,215.76
  6. Step 6: Final answer
    x = 181,729.79

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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.