Home / 275,130.25-379,518.48-172,993.84

Finding the Fourth Proportional to 275,130.25, 379,518.48 and 172,993.84

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Solution

The fourth proportional to 275,130.25, 379,518.48 and 172,993.84 is: 238,630.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,130.25 : 379,518.48 = 172,993.84 : x
  2. Step 2: Convert to fraction form
    275,130.25/379,518.48 = 172,993.84/x
  3. Step 3: Cross multiply
    275,130.25x = 379,518.48 × 172,993.84
  4. Step 4: Simplify right side
    275,130.25x = 65,654,358,257.37
  5. Step 5: Solve for x
    x = 65,654,358,257.37/275,130.25
  6. Step 6: Final answer
    x = 238,630.10

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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.