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Finding the Fourth Proportional to 474,209.80, 711,314.70 and 208,097.80

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Solution

The fourth proportional to 474,209.80, 711,314.70 and 208,097.80 is: 312,146.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,209.80 : 711,314.70 = 208,097.80 : x
  2. Step 2: Convert to fraction form
    474,209.80/711,314.70 = 208,097.80/x
  3. Step 3: Cross multiply
    474,209.80x = 711,314.70 × 208,097.80
  4. Step 4: Simplify right side
    474,209.80x = 148,023,024,177.66
  5. Step 5: Solve for x
    x = 148,023,024,177.66/474,209.80
  6. Step 6: Final answer
    x = 312,146.70

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