Home / 220,772.16-331,191.36-102,455.64

Finding the Fourth Proportional to 220,772.16, 331,191.36 and 102,455.64

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Solution

The fourth proportional to 220,772.16, 331,191.36 and 102,455.64 is: 153,698.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,772.16 : 331,191.36 = 102,455.64 : x
  2. Step 2: Convert to fraction form
    220,772.16/331,191.36 = 102,455.64/x
  3. Step 3: Cross multiply
    220,772.16x = 331,191.36 × 102,455.64
  4. Step 4: Simplify right side
    220,772.16x = 33,932,422,751.27
  5. Step 5: Solve for x
    x = 33,932,422,751.27/220,772.16
  6. Step 6: Final answer
    x = 153,698.83

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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.