Home / 221,291.70-331,986.33-131,416.13

Finding the Fourth Proportional to 221,291.70, 331,986.33 and 131,416.13

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Solution

The fourth proportional to 221,291.70, 331,986.33 and 131,416.13 is: 197,153.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,291.70 : 331,986.33 = 131,416.13 : x
  2. Step 2: Convert to fraction form
    221,291.70/331,986.33 = 131,416.13/x
  3. Step 3: Cross multiply
    221,291.70x = 331,986.33 × 131,416.13
  4. Step 4: Simplify right side
    221,291.70x = 43,628,357,041.57
  5. Step 5: Solve for x
    x = 43,628,357,041.57/221,291.70
  6. Step 6: Final answer
    x = 197,153.16

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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.