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Finding the Fourth Proportional to 418,969.26, 628,372.76 and 162,801.36

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Solution

The fourth proportional to 418,969.26, 628,372.76 and 162,801.36 is: 244,170.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,969.26 : 628,372.76 = 162,801.36 : x
  2. Step 2: Convert to fraction form
    418,969.26/628,372.76 = 162,801.36/x
  3. Step 3: Cross multiply
    418,969.26x = 628,372.76 × 162,801.36
  4. Step 4: Simplify right side
    418,969.26x = 102,299,939,100.95
  5. Step 5: Solve for x
    x = 102,299,939,100.95/418,969.26
  6. Step 6: Final answer
    x = 244,170.51

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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.