Home / 223,198.08-308,015.59-121,225.54

Finding the Fourth Proportional to 223,198.08, 308,015.59 and 121,225.54

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Solution

The fourth proportional to 223,198.08, 308,015.59 and 121,225.54 is: 167,292.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,198.08 : 308,015.59 = 121,225.54 : x
  2. Step 2: Convert to fraction form
    223,198.08/308,015.59 = 121,225.54/x
  3. Step 3: Cross multiply
    223,198.08x = 308,015.59 × 121,225.54
  4. Step 4: Simplify right side
    223,198.08x = 37,339,354,750.65
  5. Step 5: Solve for x
    x = 37,339,354,750.65/223,198.08
  6. Step 6: Final answer
    x = 167,292.45

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1.5x scale

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.