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Finding the Fourth Proportional to 374,568, 561,852 and 111,912

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Solution

The fourth proportional to 374,568, 561,852 and 111,912 is: 167,868

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,568 : 561,852 = 111,912 : x
  2. Step 2: Convert to fraction form
    374,568/561,852 = 111,912/x
  3. Step 3: Cross multiply
    374,568x = 561,852 × 111,912
  4. Step 4: Simplify right side
    374,568x = 62,877,981,024
  5. Step 5: Solve for x
    x = 62,877,981,024/374,568
  6. Step 6: Final answer
    x = 167,868

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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.