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Finding the Fourth Proportional to 245,117.80, 367,287.90 and 161,914.60

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Solution

The fourth proportional to 245,117.80, 367,287.90 and 161,914.60 is: 242,615.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,117.80 : 367,287.90 = 161,914.60 : x
  2. Step 2: Convert to fraction form
    245,117.80/367,287.90 = 161,914.60/x
  3. Step 3: Cross multiply
    245,117.80x = 367,287.90 × 161,914.60
  4. Step 4: Simplify right side
    245,117.80x = 59,469,273,413.34
  5. Step 5: Solve for x
    x = 59,469,273,413.34/245,117.80
  6. Step 6: Final answer
    x = 242,615.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.