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Finding the Fourth Proportional to 248,004, 372,006.18 and 81,792

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Solution

The fourth proportional to 248,004, 372,006.18 and 81,792 is: 122,688.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,004 : 372,006.18 = 81,792 : x
  2. Step 2: Convert to fraction form
    248,004/372,006.18 = 81,792/x
  3. Step 3: Cross multiply
    248,004x = 372,006.18 × 81,792
  4. Step 4: Simplify right side
    248,004x = 30,427,129,474.56
  5. Step 5: Solve for x
    x = 30,427,129,474.56/248,004
  6. Step 6: Final answer
    x = 122,688.06

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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.