Home / 372,448.80-513,980.07-211,272.71

Finding the Fourth Proportional to 372,448.80, 513,980.07 and 211,272.71

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Solution

The fourth proportional to 372,448.80, 513,980.07 and 211,272.71 is: 291,556.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,448.80 : 513,980.07 = 211,272.71 : x
  2. Step 2: Convert to fraction form
    372,448.80/513,980.07 = 211,272.71/x
  3. Step 3: Cross multiply
    372,448.80x = 513,980.07 × 211,272.71
  4. Step 4: Simplify right side
    372,448.80x = 108,589,958,912.72
  5. Step 5: Solve for x
    x = 108,589,958,912.72/372,448.80
  6. Step 6: Final answer
    x = 291,556.74

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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.