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Finding the Fourth Proportional to 1,257.94, 1,886.73 and 333.55

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Solution

The fourth proportional to 1,257.94, 1,886.73 and 333.55 is: 500.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257.94 : 1,886.73 = 333.55 : x
  2. Step 2: Convert to fraction form
    1,257.94/1,886.73 = 333.55/x
  3. Step 3: Cross multiply
    1,257.94x = 1,886.73 × 333.55
  4. Step 4: Simplify right side
    1,257.94x = 629,318.79
  5. Step 5: Solve for x
    x = 629,318.79/1,257.94
  6. Step 6: Final answer
    x = 500.28

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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.