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Finding the Fourth Proportional to 626,672.90, 939,998.93 and 200,205.68

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Solution

The fourth proportional to 626,672.90, 939,998.93 and 200,205.68 is: 300,305.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,672.90 : 939,998.93 = 200,205.68 : x
  2. Step 2: Convert to fraction form
    626,672.90/939,998.93 = 200,205.68/x
  3. Step 3: Cross multiply
    626,672.90x = 939,998.93 × 200,205.68
  4. Step 4: Simplify right side
    626,672.90x = 188,193,119,278.90
  5. Step 5: Solve for x
    x = 188,193,119,278.90/626,672.90
  6. Step 6: Final answer
    x = 300,305.18

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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.