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Finding the Fourth Proportional to 251,735.45, 377,604.17 and 101,978.55

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Solution

The fourth proportional to 251,735.45, 377,604.17 and 101,978.55 is: 152,968.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,735.45 : 377,604.17 = 101,978.55 : x
  2. Step 2: Convert to fraction form
    251,735.45/377,604.17 = 101,978.55/x
  3. Step 3: Cross multiply
    251,735.45x = 377,604.17 × 101,978.55
  4. Step 4: Simplify right side
    251,735.45x = 38,507,525,220.66
  5. Step 5: Solve for x
    x = 38,507,525,220.66/251,735.45
  6. Step 6: Final answer
    x = 152,968.23

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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.