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Finding the Fourth Proportional to 329,026.80, 493,655.40 and 142,172.40

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Solution

The fourth proportional to 329,026.80, 493,655.40 and 142,172.40 is: 213,308.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,026.80 : 493,655.40 = 142,172.40 : x
  2. Step 2: Convert to fraction form
    329,026.80/493,655.40 = 142,172.40/x
  3. Step 3: Cross multiply
    329,026.80x = 493,655.40 × 142,172.40
  4. Step 4: Simplify right side
    329,026.80x = 70,184,172,990.96
  5. Step 5: Solve for x
    x = 70,184,172,990.96/329,026.80
  6. Step 6: Final answer
    x = 213,308.38

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