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Finding the Fourth Proportional to 245,909.43, 368,791.25 and 105,635.25

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Solution

The fourth proportional to 245,909.43, 368,791.25 and 105,635.25 is: 158,421.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,909.43 : 368,791.25 = 105,635.25 : x
  2. Step 2: Convert to fraction form
    245,909.43/368,791.25 = 105,635.25/x
  3. Step 3: Cross multiply
    245,909.43x = 368,791.25 × 105,635.25
  4. Step 4: Simplify right side
    245,909.43x = 38,957,355,363.39
  5. Step 5: Solve for x
    x = 38,957,355,363.39/245,909.43
  6. Step 6: Final answer
    x = 158,421.56

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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.