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Finding the Fourth Proportional to 349,608, 524,413.44 and 127,992

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Solution

The fourth proportional to 349,608, 524,413.44 and 127,992 is: 191,988.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,608 : 524,413.44 = 127,992 : x
  2. Step 2: Convert to fraction form
    349,608/524,413.44 = 127,992/x
  3. Step 3: Cross multiply
    349,608x = 524,413.44 × 127,992
  4. Step 4: Simplify right side
    349,608x = 67,120,725,012.48
  5. Step 5: Solve for x
    x = 67,120,725,012.48/349,608
  6. Step 6: Final answer
    x = 191,988.53

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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.