Home / 328,789.16-453,729.22-228,245.48

Finding the Fourth Proportional to 328,789.16, 453,729.22 and 228,245.48

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Solution

The fourth proportional to 328,789.16, 453,729.22 and 228,245.48 is: 314,978.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,789.16 : 453,729.22 = 228,245.48 : x
  2. Step 2: Convert to fraction form
    328,789.16/453,729.22 = 228,245.48/x
  3. Step 3: Cross multiply
    328,789.16x = 453,729.22 × 228,245.48
  4. Step 4: Simplify right side
    328,789.16x = 103,561,643,608.93
  5. Step 5: Solve for x
    x = 103,561,643,608.93/328,789.16
  6. Step 6: Final answer
    x = 314,978.89

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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.