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Finding the Fourth Proportional to 328,855.78, 453,859.26 and 273,567.43

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Solution

The fourth proportional to 328,855.78, 453,859.26 and 273,567.43 is: 377,554.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,855.78 : 453,859.26 = 273,567.43 : x
  2. Step 2: Convert to fraction form
    328,855.78/453,859.26 = 273,567.43/x
  3. Step 3: Cross multiply
    328,855.78x = 453,859.26 × 273,567.43
  4. Step 4: Simplify right side
    328,855.78x = 124,161,109,070.61
  5. Step 5: Solve for x
    x = 124,161,109,070.61/328,855.78
  6. Step 6: Final answer
    x = 377,554.90

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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.