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Finding the Fourth Proportional to 298,030.80, 411,251.40 and 170,711.76

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Solution

The fourth proportional to 298,030.80, 411,251.40 and 170,711.76 is: 235,564.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,030.80 : 411,251.40 = 170,711.76 : x
  2. Step 2: Convert to fraction form
    298,030.80/411,251.40 = 170,711.76/x
  3. Step 3: Cross multiply
    298,030.80x = 411,251.40 × 170,711.76
  4. Step 4: Simplify right side
    298,030.80x = 70,205,450,296.46
  5. Step 5: Solve for x
    x = 70,205,450,296.46/298,030.80
  6. Step 6: Final answer
    x = 235,564.41

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