Home / 213,413.40-294,519.11-122,769.41

Finding the Fourth Proportional to 213,413.40, 294,519.11 and 122,769.41

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Solution

The fourth proportional to 213,413.40, 294,519.11 and 122,769.41 is: 169,426.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,413.40 : 294,519.11 = 122,769.41 : x
  2. Step 2: Convert to fraction form
    213,413.40/294,519.11 = 122,769.41/x
  3. Step 3: Cross multiply
    213,413.40x = 294,519.11 × 122,769.41
  4. Step 4: Simplify right side
    213,413.40x = 36,157,935,281.98
  5. Step 5: Solve for x
    x = 36,157,935,281.98/213,413.40
  6. Step 6: Final answer
    x = 169,426.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.