Home / 305,297.43-421,034.67-190,586.66

Finding the Fourth Proportional to 305,297.43, 421,034.67 and 190,586.66

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Solution

The fourth proportional to 305,297.43, 421,034.67 and 190,586.66 is: 262,837.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,297.43 : 421,034.67 = 190,586.66 : x
  2. Step 2: Convert to fraction form
    305,297.43/421,034.67 = 190,586.66/x
  3. Step 3: Cross multiply
    305,297.43x = 421,034.67 × 190,586.66
  4. Step 4: Simplify right side
    305,297.43x = 80,243,591,499.50
  5. Step 5: Solve for x
    x = 80,243,591,499.50/305,297.43
  6. Step 6: Final answer
    x = 262,837.43

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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.