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Finding the Fourth Proportional to 352,996.36, 529,280.84 and 142,388.26

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Solution

The fourth proportional to 352,996.36, 529,280.84 and 142,388.26 is: 213,496.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,996.36 : 529,280.84 = 142,388.26 : x
  2. Step 2: Convert to fraction form
    352,996.36/529,280.84 = 142,388.26/x
  3. Step 3: Cross multiply
    352,996.36x = 529,280.84 × 142,388.26
  4. Step 4: Simplify right side
    352,996.36x = 75,363,377,858.94
  5. Step 5: Solve for x
    x = 75,363,377,858.94/352,996.36
  6. Step 6: Final answer
    x = 213,496.19

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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.