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Finding the Fourth Proportional to 218,795.50, 301,937.79 and 118,193.50

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Solution

The fourth proportional to 218,795.50, 301,937.79 and 118,193.50 is: 163,107.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,795.50 : 301,937.79 = 118,193.50 : x
  2. Step 2: Convert to fraction form
    218,795.50/301,937.79 = 118,193.50/x
  3. Step 3: Cross multiply
    218,795.50x = 301,937.79 × 118,193.50
  4. Step 4: Simplify right side
    218,795.50x = 35,687,084,182.37
  5. Step 5: Solve for x
    x = 35,687,084,182.37/218,795.50
  6. Step 6: Final answer
    x = 163,107.03

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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.