Home / 221,623.38-332,435.07-55,411.38

Finding the Fourth Proportional to 221,623.38, 332,435.07 and 55,411.38

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Solution

The fourth proportional to 221,623.38, 332,435.07 and 55,411.38 is: 83,117.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,623.38 : 332,435.07 = 55,411.38 : x
  2. Step 2: Convert to fraction form
    221,623.38/332,435.07 = 55,411.38/x
  3. Step 3: Cross multiply
    221,623.38x = 332,435.07 × 55,411.38
  4. Step 4: Simplify right side
    221,623.38x = 18,420,685,989.10
  5. Step 5: Solve for x
    x = 18,420,685,989.10/221,623.38
  6. Step 6: Final answer
    x = 83,117.07

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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.