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Finding the Fourth Proportional to 208,994.65, 313,503.81 and 66,852.40

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Solution

The fourth proportional to 208,994.65, 313,503.81 and 66,852.40 is: 100,282.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,994.65 : 313,503.81 = 66,852.40 : x
  2. Step 2: Convert to fraction form
    208,994.65/313,503.81 = 66,852.40/x
  3. Step 3: Cross multiply
    208,994.65x = 313,503.81 × 66,852.40
  4. Step 4: Simplify right side
    208,994.65x = 20,958,482,107.64
  5. Step 5: Solve for x
    x = 20,958,482,107.64/208,994.65
  6. Step 6: Final answer
    x = 100,282.39

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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.