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Finding the Fourth Proportional to 438,450.42, 605,162.70 and 257,220.58

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Solution

The fourth proportional to 438,450.42, 605,162.70 and 257,220.58 is: 355,023.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,450.42 : 605,162.70 = 257,220.58 : x
  2. Step 2: Convert to fraction form
    438,450.42/605,162.70 = 257,220.58/x
  3. Step 3: Cross multiply
    438,450.42x = 605,162.70 × 257,220.58
  4. Step 4: Simplify right side
    438,450.42x = 155,660,300,688.37
  5. Step 5: Solve for x
    x = 155,660,300,688.37/438,450.42
  6. Step 6: Final answer
    x = 355,023.72

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