Home / 213,211.38-294,231.61-122,585.05

Finding the Fourth Proportional to 213,211.38, 294,231.61 and 122,585.05

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Solution

The fourth proportional to 213,211.38, 294,231.61 and 122,585.05 is: 169,167.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,211.38 : 294,231.61 = 122,585.05 : x
  2. Step 2: Convert to fraction form
    213,211.38/294,231.61 = 122,585.05/x
  3. Step 3: Cross multiply
    213,211.38x = 294,231.61 × 122,585.05
  4. Step 4: Simplify right side
    213,211.38x = 36,068,396,623.43
  5. Step 5: Solve for x
    x = 36,068,396,623.43/213,211.38
  6. Step 6: Final answer
    x = 169,167.31

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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.