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Finding the Fourth Proportional to 192,907.90, 289,361.86 and 80,526.82

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Solution

The fourth proportional to 192,907.90, 289,361.86 and 80,526.82 is: 120,790.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,907.90 : 289,361.86 = 80,526.82 : x
  2. Step 2: Convert to fraction form
    192,907.90/289,361.86 = 80,526.82/x
  3. Step 3: Cross multiply
    192,907.90x = 289,361.86 × 80,526.82
  4. Step 4: Simplify right side
    192,907.90x = 23,301,390,415.09
  5. Step 5: Solve for x
    x = 23,301,390,415.09/192,907.90
  6. Step 6: Final answer
    x = 120,790.23

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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.