Home / 326,145.07-449,663.56-211,220.65

Finding the Fourth Proportional to 326,145.07, 449,663.56 and 211,220.65

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Solution

The fourth proportional to 326,145.07, 449,663.56 and 211,220.65 is: 291,214.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,145.07 : 449,663.56 = 211,220.65 : x
  2. Step 2: Convert to fraction form
    326,145.07/449,663.56 = 211,220.65/x
  3. Step 3: Cross multiply
    326,145.07x = 449,663.56 × 211,220.65
  4. Step 4: Simplify right side
    326,145.07x = 94,978,229,424.51
  5. Step 5: Solve for x
    x = 94,978,229,424.51/326,145.07
  6. Step 6: Final answer
    x = 291,214.67

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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.