Home / 368,967.21-509,213.03-225,822.57

Finding the Fourth Proportional to 368,967.21, 509,213.03 and 225,822.57

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Solution

The fourth proportional to 368,967.21, 509,213.03 and 225,822.57 is: 311,658.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,967.21 : 509,213.03 = 225,822.57 : x
  2. Step 2: Convert to fraction form
    368,967.21/509,213.03 = 225,822.57/x
  3. Step 3: Cross multiply
    368,967.21x = 509,213.03 × 225,822.57
  4. Step 4: Simplify right side
    368,967.21x = 114,991,793,982.97
  5. Step 5: Solve for x
    x = 114,991,793,982.97/368,967.21
  6. Step 6: Final answer
    x = 311,658.57

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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.