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Finding the Fourth Proportional to 199,889.21, 275,838.81 and 118,270.37

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Solution

The fourth proportional to 199,889.21, 275,838.81 and 118,270.37 is: 163,208.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,889.21 : 275,838.81 = 118,270.37 : x
  2. Step 2: Convert to fraction form
    199,889.21/275,838.81 = 118,270.37/x
  3. Step 3: Cross multiply
    199,889.21x = 275,838.81 × 118,270.37
  4. Step 4: Simplify right side
    199,889.21x = 32,623,558,119.06
  5. Step 5: Solve for x
    x = 32,623,558,119.06/199,889.21
  6. Step 6: Final answer
    x = 163,208.20

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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.