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Finding the Fourth Proportional to 306,410.01, 422,871.36 and 170,469.57

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Solution

The fourth proportional to 306,410.01, 422,871.36 and 170,469.57 is: 235,262.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,410.01 : 422,871.36 = 170,469.57 : x
  2. Step 2: Convert to fraction form
    306,410.01/422,871.36 = 170,469.57/x
  3. Step 3: Cross multiply
    306,410.01x = 422,871.36 × 170,469.57
  4. Step 4: Simplify right side
    306,410.01x = 72,086,698,904.52
  5. Step 5: Solve for x
    x = 72,086,698,904.52/306,410.01
  6. Step 6: Final answer
    x = 235,262.22

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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.