Home / 221,564.44-331,968.54-121,808.20

Finding the Fourth Proportional to 221,564.44, 331,968.54 and 121,808.20

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Solution

The fourth proportional to 221,564.44, 331,968.54 and 121,808.20 is: 182,504.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,564.44 : 331,968.54 = 121,808.20 : x
  2. Step 2: Convert to fraction form
    221,564.44/331,968.54 = 121,808.20/x
  3. Step 3: Cross multiply
    221,564.44x = 331,968.54 × 121,808.20
  4. Step 4: Simplify right side
    221,564.44x = 40,436,490,314.03
  5. Step 5: Solve for x
    x = 40,436,490,314.03/221,564.44
  6. Step 6: Final answer
    x = 182,504.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.