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Finding the Fourth Proportional to 352,662.54, 528,858.38 and 172,636.88

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Solution

The fourth proportional to 352,662.54, 528,858.38 and 172,636.88 is: 258,889.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,662.54 : 528,858.38 = 172,636.88 : x
  2. Step 2: Convert to fraction form
    352,662.54/528,858.38 = 172,636.88/x
  3. Step 3: Cross multiply
    352,662.54x = 528,858.38 × 172,636.88
  4. Step 4: Simplify right side
    352,662.54x = 91,300,460,685.05
  5. Step 5: Solve for x
    x = 91,300,460,685.05/352,662.54
  6. Step 6: Final answer
    x = 258,889.02

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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.