Home / 221,091.55-331,637.32-54,879.55

Finding the Fourth Proportional to 221,091.55, 331,637.32 and 54,879.55

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Solution

The fourth proportional to 221,091.55, 331,637.32 and 54,879.55 is: 82,319.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,091.55 : 331,637.32 = 54,879.55 : x
  2. Step 2: Convert to fraction form
    221,091.55/331,637.32 = 54,879.55/x
  3. Step 3: Cross multiply
    221,091.55x = 331,637.32 × 54,879.55
  4. Step 4: Simplify right side
    221,091.55x = 18,200,106,884.81
  5. Step 5: Solve for x
    x = 18,200,106,884.81/221,091.55
  6. Step 6: Final answer
    x = 82,319.32

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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.