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Finding the Fourth Proportional to 286,003.99, 428,837.77 and 108,523.47

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Solution

The fourth proportional to 286,003.99, 428,837.77 and 108,523.47 is: 162,721.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,003.99 : 428,837.77 = 108,523.47 : x
  2. Step 2: Convert to fraction form
    286,003.99/428,837.77 = 108,523.47/x
  3. Step 3: Cross multiply
    286,003.99x = 428,837.77 × 108,523.47
  4. Step 4: Simplify right side
    286,003.99x = 46,538,964,611.26
  5. Step 5: Solve for x
    x = 46,538,964,611.26/286,003.99
  6. Step 6: Final answer
    x = 162,721.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.