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Finding the Fourth Proportional to 228,653.37, 315,540.99 and 131,856.75

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Solution

The fourth proportional to 228,653.37, 315,540.99 and 131,856.75 is: 181,961.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,653.37 : 315,540.99 = 131,856.75 : x
  2. Step 2: Convert to fraction form
    228,653.37/315,540.99 = 131,856.75/x
  3. Step 3: Cross multiply
    228,653.37x = 315,540.99 × 131,856.75
  4. Step 4: Simplify right side
    228,653.37x = 41,606,209,433.18
  5. Step 5: Solve for x
    x = 41,606,209,433.18/228,653.37
  6. Step 6: Final answer
    x = 181,961.93

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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.