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Finding the Fourth Proportional to 201,490.77, 278,064 and 110,850.57

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Solution

The fourth proportional to 201,490.77, 278,064 and 110,850.57 is: 152,977.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,490.77 : 278,064 = 110,850.57 : x
  2. Step 2: Convert to fraction form
    201,490.77/278,064 = 110,850.57/x
  3. Step 3: Cross multiply
    201,490.77x = 278,064 × 110,850.57
  4. Step 4: Simplify right side
    201,490.77x = 30,823,552,896.48
  5. Step 5: Solve for x
    x = 30,823,552,896.48/201,490.77
  6. Step 6: Final answer
    x = 152,977.49

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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.