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Finding the Fourth Proportional to 345,348.41, 518,077.98 and 145,698.21

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Solution

The fourth proportional to 345,348.41, 518,077.98 and 145,698.21 is: 218,570.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,348.41 : 518,077.98 = 145,698.21 : x
  2. Step 2: Convert to fraction form
    345,348.41/518,077.98 = 145,698.21/x
  3. Step 3: Cross multiply
    345,348.41x = 518,077.98 × 145,698.21
  4. Step 4: Simplify right side
    345,348.41x = 75,483,034,326.42
  5. Step 5: Solve for x
    x = 75,483,034,326.42/345,348.41
  6. Step 6: Final answer
    x = 218,570.67

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