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Finding the Fourth Proportional to 203,937.21, 305,905.90 and 77,548.25

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Solution

The fourth proportional to 203,937.21, 305,905.90 and 77,548.25 is: 116,322.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,937.21 : 305,905.90 = 77,548.25 : x
  2. Step 2: Convert to fraction form
    203,937.21/305,905.90 = 77,548.25/x
  3. Step 3: Cross multiply
    203,937.21x = 305,905.90 × 77,548.25
  4. Step 4: Simplify right side
    203,937.21x = 23,722,467,209.68
  5. Step 5: Solve for x
    x = 23,722,467,209.68/203,937.21
  6. Step 6: Final answer
    x = 116,322.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.