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Finding the Fourth Proportional to 1,267.94, 1,902.08 and 446.02

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Solution

The fourth proportional to 1,267.94, 1,902.08 and 446.02 is: 669.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,267.94 : 1,902.08 = 446.02 : x
  2. Step 2: Convert to fraction form
    1,267.94/1,902.08 = 446.02/x
  3. Step 3: Cross multiply
    1,267.94x = 1,902.08 × 446.02
  4. Step 4: Simplify right side
    1,267.94x = 848,365.72
  5. Step 5: Solve for x
    x = 848,365.72/1,267.94
  6. Step 6: Final answer
    x = 669.09

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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.