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Finding the Fourth Proportional to 306,026.56, 422,289.77 and 170,051.89

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Solution

The fourth proportional to 306,026.56, 422,289.77 and 170,051.89 is: 234,656.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,026.56 : 422,289.77 = 170,051.89 : x
  2. Step 2: Convert to fraction form
    306,026.56/422,289.77 = 170,051.89/x
  3. Step 3: Cross multiply
    306,026.56x = 422,289.77 × 170,051.89
  4. Step 4: Simplify right side
    306,026.56x = 71,811,171,610.18
  5. Step 5: Solve for x
    x = 71,811,171,610.18/306,026.56
  6. Step 6: Final answer
    x = 234,656.67

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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.