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Finding the Fourth Proportional to 300,998.88, 415,379.04 and 166,862.88

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Solution

The fourth proportional to 300,998.88, 415,379.04 and 166,862.88 is: 230,271.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,998.88 : 415,379.04 = 166,862.88 : x
  2. Step 2: Convert to fraction form
    300,998.88/415,379.04 = 166,862.88/x
  3. Step 3: Cross multiply
    300,998.88x = 415,379.04 × 166,862.88
  4. Step 4: Simplify right side
    300,998.88x = 69,311,342,906.04
  5. Step 5: Solve for x
    x = 69,311,342,906.04/300,998.88
  6. Step 6: Final answer
    x = 230,271.10

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1.5x scale

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.