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Finding the Fourth Proportional to 236,796, 326,778.48 and 130,812

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Solution

The fourth proportional to 236,796, 326,778.48 and 130,812 is: 180,520.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,796 : 326,778.48 = 130,812 : x
  2. Step 2: Convert to fraction form
    236,796/326,778.48 = 130,812/x
  3. Step 3: Cross multiply
    236,796x = 326,778.48 × 130,812
  4. Step 4: Simplify right side
    236,796x = 42,746,546,525.76
  5. Step 5: Solve for x
    x = 42,746,546,525.76/236,796
  6. Step 6: Final answer
    x = 180,520.56

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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.