Home / 221,579.91-305,744.22-130,923.27

Finding the Fourth Proportional to 221,579.91, 305,744.22 and 130,923.27

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Solution

The fourth proportional to 221,579.91, 305,744.22 and 130,923.27 is: 180,652.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,579.91 : 305,744.22 = 130,923.27 : x
  2. Step 2: Convert to fraction form
    221,579.91/305,744.22 = 130,923.27/x
  3. Step 3: Cross multiply
    221,579.91x = 305,744.22 × 130,923.27
  4. Step 4: Simplify right side
    221,579.91x = 40,029,033,066.00
  5. Step 5: Solve for x
    x = 40,029,033,066.00/221,579.91
  6. Step 6: Final answer
    x = 180,652.81

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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.