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Finding the Fourth Proportional to 168,277.55, 252,222.53 and 68,328

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Solution

The fourth proportional to 168,277.55, 252,222.53 and 68,328 is: 102,413.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,277.55 : 252,222.53 = 68,328 : x
  2. Step 2: Convert to fraction form
    168,277.55/252,222.53 = 68,328/x
  3. Step 3: Cross multiply
    168,277.55x = 252,222.53 × 68,328
  4. Step 4: Simplify right side
    168,277.55x = 17,233,860,688.20
  5. Step 5: Solve for x
    x = 17,233,860,688.20/168,277.55
  6. Step 6: Final answer
    x = 102,413.31

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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.