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Finding the Fourth Proportional to 342,391.32, 513,308.61 and 142,860.33

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Solution

The fourth proportional to 342,391.32, 513,308.61 and 142,860.33 is: 214,174.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,391.32 : 513,308.61 = 142,860.33 : x
  2. Step 2: Convert to fraction form
    342,391.32/513,308.61 = 142,860.33/x
  3. Step 3: Cross multiply
    342,391.32x = 513,308.61 × 142,860.33
  4. Step 4: Simplify right side
    342,391.32x = 73,331,437,416.44
  5. Step 5: Solve for x
    x = 73,331,437,416.44/342,391.32
  6. Step 6: Final answer
    x = 214,174.35

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