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Finding the Fourth Proportional to 269,130, 371,399.40 and 149,898

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Solution

The fourth proportional to 269,130, 371,399.40 and 149,898 is: 206,859.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,130 : 371,399.40 = 149,898 : x
  2. Step 2: Convert to fraction form
    269,130/371,399.40 = 149,898/x
  3. Step 3: Cross multiply
    269,130x = 371,399.40 × 149,898
  4. Step 4: Simplify right side
    269,130x = 55,672,027,261.20
  5. Step 5: Solve for x
    x = 55,672,027,261.20/269,130
  6. Step 6: Final answer
    x = 206,859.24

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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.