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Finding the Fourth Proportional to 230,260.65, 315,458.19 and 221,631.57

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Solution

The fourth proportional to 230,260.65, 315,458.19 and 221,631.57 is: 303,636.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,260.65 : 315,458.19 = 221,631.57 : x
  2. Step 2: Convert to fraction form
    230,260.65/315,458.19 = 221,631.57/x
  3. Step 3: Cross multiply
    230,260.65x = 315,458.19 × 221,631.57
  4. Step 4: Simplify right side
    230,260.65x = 69,915,493,919.06
  5. Step 5: Solve for x
    x = 69,915,493,919.06/230,260.65
  6. Step 6: Final answer
    x = 303,636.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.