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Finding the Fourth Proportional to 538,958.15, 808,299.33 and 159,790.22

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Solution

The fourth proportional to 538,958.15, 808,299.33 and 159,790.22 is: 239,644.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,958.15 : 808,299.33 = 159,790.22 : x
  2. Step 2: Convert to fraction form
    538,958.15/808,299.33 = 159,790.22/x
  3. Step 3: Cross multiply
    538,958.15x = 808,299.33 × 159,790.22
  4. Step 4: Simplify right side
    538,958.15x = 129,158,327,766.55
  5. Step 5: Solve for x
    x = 129,158,327,766.55/538,958.15
  6. Step 6: Final answer
    x = 239,644.45

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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.