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Finding the Fourth Proportional to 228,597.99, 315,435.33 and 131,805.49

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Solution

The fourth proportional to 228,597.99, 315,435.33 and 131,805.49 is: 181,874.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,597.99 : 315,435.33 = 131,805.49 : x
  2. Step 2: Convert to fraction form
    228,597.99/315,435.33 = 131,805.49/x
  3. Step 3: Cross multiply
    228,597.99x = 315,435.33 × 131,805.49
  4. Step 4: Simplify right side
    228,597.99x = 41,576,105,997.76
  5. Step 5: Solve for x
    x = 41,576,105,997.76/228,597.99
  6. Step 6: Final answer
    x = 181,874.33

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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.