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Finding the Fourth Proportional to 304,155.09, 419,594.51 and 196,759.76

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Solution

The fourth proportional to 304,155.09, 419,594.51 and 196,759.76 is: 271,438.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,155.09 : 419,594.51 = 196,759.76 : x
  2. Step 2: Convert to fraction form
    304,155.09/419,594.51 = 196,759.76/x
  3. Step 3: Cross multiply
    304,155.09x = 419,594.51 × 196,759.76
  4. Step 4: Simplify right side
    304,155.09x = 82,559,312,986.95
  5. Step 5: Solve for x
    x = 82,559,312,986.95/304,155.09
  6. Step 6: Final answer
    x = 271,438.21

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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.