Home / 221,665.50-332,612.46-121,904.28

Finding the Fourth Proportional to 221,665.50, 332,612.46 and 121,904.28

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Solution

The fourth proportional to 221,665.50, 332,612.46 and 121,904.28 is: 182,919.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,665.50 : 332,612.46 = 121,904.28 : x
  2. Step 2: Convert to fraction form
    221,665.50/332,612.46 = 121,904.28/x
  3. Step 3: Cross multiply
    221,665.50x = 332,612.46 × 121,904.28
  4. Step 4: Simplify right side
    221,665.50x = 40,546,882,455.33
  5. Step 5: Solve for x
    x = 40,546,882,455.33/221,665.50
  6. Step 6: Final answer
    x = 182,919.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.