Home / 379,021.55-567,625.93-218,611.20

Finding the Fourth Proportional to 379,021.55, 567,625.93 and 218,611.20

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Solution

The fourth proportional to 379,021.55, 567,625.93 and 218,611.20 is: 327,394.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,021.55 : 567,625.93 = 218,611.20 : x
  2. Step 2: Convert to fraction form
    379,021.55/567,625.93 = 218,611.20/x
  3. Step 3: Cross multiply
    379,021.55x = 567,625.93 × 218,611.20
  4. Step 4: Simplify right side
    379,021.55x = 124,089,385,161.89
  5. Step 5: Solve for x
    x = 124,089,385,161.89/379,021.55
  6. Step 6: Final answer
    x = 327,394.01

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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.