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Finding the Fourth Proportional to 245,379.88, 368,069.92 and 76,913.34

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Solution

The fourth proportional to 245,379.88, 368,069.92 and 76,913.34 is: 115,370.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,379.88 : 368,069.92 = 76,913.34 : x
  2. Step 2: Convert to fraction form
    245,379.88/368,069.92 = 76,913.34/x
  3. Step 3: Cross multiply
    245,379.88x = 368,069.92 × 76,913.34
  4. Step 4: Simplify right side
    245,379.88x = 28,309,486,900.73
  5. Step 5: Solve for x
    x = 28,309,486,900.73/245,379.88
  6. Step 6: Final answer
    x = 115,370.04

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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.