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Finding the Fourth Proportional to 253,806.55, 380,453.52 and 159,103.11

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Solution

The fourth proportional to 253,806.55, 380,453.52 and 159,103.11 is: 238,494.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,806.55 : 380,453.52 = 159,103.11 : x
  2. Step 2: Convert to fraction form
    253,806.55/380,453.52 = 159,103.11/x
  3. Step 3: Cross multiply
    253,806.55x = 380,453.52 × 159,103.11
  4. Step 4: Simplify right side
    253,806.55x = 60,531,338,524.54
  5. Step 5: Solve for x
    x = 60,531,338,524.54/253,806.55
  6. Step 6: Final answer
    x = 238,494.00

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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.