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Finding the Fourth Proportional to 218,701, 301,807.38 and 118,099

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Solution

The fourth proportional to 218,701, 301,807.38 and 118,099 is: 162,976.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,701 : 301,807.38 = 118,099 : x
  2. Step 2: Convert to fraction form
    218,701/301,807.38 = 118,099/x
  3. Step 3: Cross multiply
    218,701x = 301,807.38 × 118,099
  4. Step 4: Simplify right side
    218,701x = 35,643,149,770.62
  5. Step 5: Solve for x
    x = 35,643,149,770.62/218,701
  6. Step 6: Final answer
    x = 162,976.62

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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.