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Finding the Fourth Proportional to 213,930.30, 295,223.31 and 123,285.48

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Solution

The fourth proportional to 213,930.30, 295,223.31 and 123,285.48 is: 170,133.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,930.30 : 295,223.31 = 123,285.48 : x
  2. Step 2: Convert to fraction form
    213,930.30/295,223.31 = 123,285.48/x
  3. Step 3: Cross multiply
    213,930.30x = 295,223.31 × 123,285.48
  4. Step 4: Simplify right side
    213,930.30x = 36,396,747,480.54
  5. Step 5: Solve for x
    x = 36,396,747,480.54/213,930.30
  6. Step 6: Final answer
    x = 170,133.67

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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.