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Finding the Fourth Proportional to 269,057, 371,298.66 and 155,945.36

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Solution

The fourth proportional to 269,057, 371,298.66 and 155,945.36 is: 215,204.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,057 : 371,298.66 = 155,945.36 : x
  2. Step 2: Convert to fraction form
    269,057/371,298.66 = 155,945.36/x
  3. Step 3: Cross multiply
    269,057x = 371,298.66 × 155,945.36
  4. Step 4: Simplify right side
    269,057x = 57,902,303,201.22
  5. Step 5: Solve for x
    x = 57,902,303,201.22/269,057
  6. Step 6: Final answer
    x = 215,204.60

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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.