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Finding the Fourth Proportional to 188,907.72, 283,361.23 and 129,563.47

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Solution

The fourth proportional to 188,907.72, 283,361.23 and 129,563.47 is: 194,344.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,907.72 : 283,361.23 = 129,563.47 : x
  2. Step 2: Convert to fraction form
    188,907.72/283,361.23 = 129,563.47/x
  3. Step 3: Cross multiply
    188,907.72x = 283,361.23 × 129,563.47
  4. Step 4: Simplify right side
    188,907.72x = 36,713,264,222.27
  5. Step 5: Solve for x
    x = 36,713,264,222.27/188,907.72
  6. Step 6: Final answer
    x = 194,344.96

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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.