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Finding the Fourth Proportional to 209,383.62, 314,104.54 and 67,195.56

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Solution

The fourth proportional to 209,383.62, 314,104.54 and 67,195.56 is: 100,802.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,383.62 : 314,104.54 = 67,195.56 : x
  2. Step 2: Convert to fraction form
    209,383.62/314,104.54 = 67,195.56/x
  3. Step 3: Cross multiply
    209,383.62x = 314,104.54 × 67,195.56
  4. Step 4: Simplify right side
    209,383.62x = 21,106,430,463.84
  5. Step 5: Solve for x
    x = 21,106,430,463.84/209,383.62
  6. Step 6: Final answer
    x = 100,802.68

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1.5x scale

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.