Home / 326,140.70-449,657.53-211,216.28

Finding the Fourth Proportional to 326,140.70, 449,657.53 and 211,216.28

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Solution

The fourth proportional to 326,140.70, 449,657.53 and 211,216.28 is: 291,208.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,140.70 : 449,657.53 = 211,216.28 : x
  2. Step 2: Convert to fraction form
    326,140.70/449,657.53 = 211,216.28/x
  3. Step 3: Cross multiply
    326,140.70x = 449,657.53 × 211,216.28
  4. Step 4: Simplify right side
    326,140.70x = 94,974,987,984.26
  5. Step 5: Solve for x
    x = 94,974,987,984.26/326,140.70
  6. Step 6: Final answer
    x = 291,208.64

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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.