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Finding the Fourth Proportional to 356,054.60, 533,390.70 and 198,000.20

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Solution

The fourth proportional to 356,054.60, 533,390.70 and 198,000.20 is: 296,615.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,054.60 : 533,390.70 = 198,000.20 : x
  2. Step 2: Convert to fraction form
    356,054.60/533,390.70 = 198,000.20/x
  3. Step 3: Cross multiply
    356,054.60x = 533,390.70 × 198,000.20
  4. Step 4: Simplify right side
    356,054.60x = 105,611,465,278.14
  5. Step 5: Solve for x
    x = 105,611,465,278.14/356,054.60
  6. Step 6: Final answer
    x = 296,615.93

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