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Finding the Fourth Proportional to 392,935.88, 542,251.52 and 214,087.88

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Solution

The fourth proportional to 392,935.88, 542,251.52 and 214,087.88 is: 295,441.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,935.88 : 542,251.52 = 214,087.88 : x
  2. Step 2: Convert to fraction form
    392,935.88/542,251.52 = 214,087.88/x
  3. Step 3: Cross multiply
    392,935.88x = 542,251.52 × 214,087.88
  4. Step 4: Simplify right side
    392,935.88x = 116,089,474,561.88
  5. Step 5: Solve for x
    x = 116,089,474,561.88/392,935.88
  6. Step 6: Final answer
    x = 295,441.27

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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.