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Finding the Fourth Proportional to 213,879.38, 295,219.24 and 123,295.89

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Solution

The fourth proportional to 213,879.38, 295,219.24 and 123,295.89 is: 170,186.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,879.38 : 295,219.24 = 123,295.89 : x
  2. Step 2: Convert to fraction form
    213,879.38/295,219.24 = 123,295.89/x
  3. Step 3: Cross multiply
    213,879.38x = 295,219.24 × 123,295.89
  4. Step 4: Simplify right side
    213,879.38x = 36,399,318,632.68
  5. Step 5: Solve for x
    x = 36,399,318,632.68/213,879.38
  6. Step 6: Final answer
    x = 170,186.20

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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.