Home / 397,634.22-548,554.41-236,397.78

Finding the Fourth Proportional to 397,634.22, 548,554.41 and 236,397.78

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Solution

The fourth proportional to 397,634.22, 548,554.41 and 236,397.78 is: 326,121.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,634.22 : 548,554.41 = 236,397.78 : x
  2. Step 2: Convert to fraction form
    397,634.22/548,554.41 = 236,397.78/x
  3. Step 3: Cross multiply
    397,634.22x = 548,554.41 × 236,397.78
  4. Step 4: Simplify right side
    397,634.22x = 129,677,044,733.21
  5. Step 5: Solve for x
    x = 129,677,044,733.21/397,634.22
  6. Step 6: Final answer
    x = 326,121.44

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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.