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Finding the Fourth Proportional to 626,608.13, 939,865.48 and 200,189.01

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Solution

The fourth proportional to 626,608.13, 939,865.48 and 200,189.01 is: 300,268.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,608.13 : 939,865.48 = 200,189.01 : x
  2. Step 2: Convert to fraction form
    626,608.13/939,865.48 = 200,189.01/x
  3. Step 3: Cross multiply
    626,608.13x = 939,865.48 × 200,189.01
  4. Step 4: Simplify right side
    626,608.13x = 188,150,739,473.90
  5. Step 5: Solve for x
    x = 188,150,739,473.90/626,608.13
  6. Step 6: Final answer
    x = 300,268.59

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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.