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Finding the Fourth Proportional to 199,620, 275,475.60 and 110,196.64

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Solution

The fourth proportional to 199,620, 275,475.60 and 110,196.64 is: 152,071.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,620 : 275,475.60 = 110,196.64 : x
  2. Step 2: Convert to fraction form
    199,620/275,475.60 = 110,196.64/x
  3. Step 3: Cross multiply
    199,620x = 275,475.60 × 110,196.64
  4. Step 4: Simplify right side
    199,620x = 30,356,485,521.98
  5. Step 5: Solve for x
    x = 30,356,485,521.98/199,620
  6. Step 6: Final answer
    x = 152,071.36

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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.