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Finding the Fourth Proportional to 235,924.50, 325,575.81 and 129,940.50

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Solution

The fourth proportional to 235,924.50, 325,575.81 and 129,940.50 is: 179,317.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,924.50 : 325,575.81 = 129,940.50 : x
  2. Step 2: Convert to fraction form
    235,924.50/325,575.81 = 129,940.50/x
  3. Step 3: Cross multiply
    235,924.50x = 325,575.81 × 129,940.50
  4. Step 4: Simplify right side
    235,924.50x = 42,305,483,539.31
  5. Step 5: Solve for x
    x = 42,305,483,539.31/235,924.50
  6. Step 6: Final answer
    x = 179,317.89

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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.