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Finding the Fourth Proportional to 248,699.25, 343,205.01 and 135,522

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Solution

The fourth proportional to 248,699.25, 343,205.01 and 135,522 is: 187,020.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,699.25 : 343,205.01 = 135,522 : x
  2. Step 2: Convert to fraction form
    248,699.25/343,205.01 = 135,522/x
  3. Step 3: Cross multiply
    248,699.25x = 343,205.01 × 135,522
  4. Step 4: Simplify right side
    248,699.25x = 46,511,829,365.22
  5. Step 5: Solve for x
    x = 46,511,829,365.22/248,699.25
  6. Step 6: Final answer
    x = 187,020.38

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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.