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Finding the Fourth Proportional to 269,018.55, 371,231.37 and 154,291.30

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Solution

The fourth proportional to 269,018.55, 371,231.37 and 154,291.30 is: 212,913.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,018.55 : 371,231.37 = 154,291.30 : x
  2. Step 2: Convert to fraction form
    269,018.55/371,231.37 = 154,291.30/x
  3. Step 3: Cross multiply
    269,018.55x = 371,231.37 × 154,291.30
  4. Step 4: Simplify right side
    269,018.55x = 57,277,769,750.00
  5. Step 5: Solve for x
    x = 57,277,769,750.00/269,018.55
  6. Step 6: Final answer
    x = 212,913.83

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.