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Finding the Fourth Proportional to 355,243.80, 532,865.70 and 316,536.60

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Solution

The fourth proportional to 355,243.80, 532,865.70 and 316,536.60 is: 474,804.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,243.80 : 532,865.70 = 316,536.60 : x
  2. Step 2: Convert to fraction form
    355,243.80/532,865.70 = 316,536.60/x
  3. Step 3: Cross multiply
    355,243.80x = 532,865.70 × 316,536.60
  4. Step 4: Simplify right side
    355,243.80x = 168,671,496,934.62
  5. Step 5: Solve for x
    x = 168,671,496,934.62/355,243.80
  6. Step 6: Final answer
    x = 474,804.90

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