Home / 326,147.07-449,666.31-211,222.65

Finding the Fourth Proportional to 326,147.07, 449,666.31 and 211,222.65

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Solution

The fourth proportional to 326,147.07, 449,666.31 and 211,222.65 is: 291,217.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,147.07 : 449,666.31 = 211,222.65 : x
  2. Step 2: Convert to fraction form
    326,147.07/449,666.31 = 211,222.65/x
  3. Step 3: Cross multiply
    326,147.07x = 449,666.31 × 211,222.65
  4. Step 4: Simplify right side
    326,147.07x = 94,979,709,613.92
  5. Step 5: Solve for x
    x = 94,979,709,613.92/326,147.07
  6. Step 6: Final answer
    x = 291,217.42

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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.