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Finding the Fourth Proportional to 450,413.91, 621,466.56 and 269,184.51

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Solution

The fourth proportional to 450,413.91, 621,466.56 and 269,184.51 is: 371,412.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,413.91 : 621,466.56 = 269,184.51 : x
  2. Step 2: Convert to fraction form
    450,413.91/621,466.56 = 269,184.51/x
  3. Step 3: Cross multiply
    450,413.91x = 621,466.56 × 269,184.51
  4. Step 4: Simplify right side
    450,413.91x = 167,289,171,434.99
  5. Step 5: Solve for x
    x = 167,289,171,434.99/450,413.91
  6. Step 6: Final answer
    x = 371,412.09

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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.