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Finding the Fourth Proportional to 352,165.28, 485,316.24 and 251,388.32

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Solution

The fourth proportional to 352,165.28, 485,316.24 and 251,388.32 is: 346,436.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,165.28 : 485,316.24 = 251,388.32 : x
  2. Step 2: Convert to fraction form
    352,165.28/485,316.24 = 251,388.32/x
  3. Step 3: Cross multiply
    352,165.28x = 485,316.24 × 251,388.32
  4. Step 4: Simplify right side
    352,165.28x = 122,002,834,242.32
  5. Step 5: Solve for x
    x = 122,002,834,242.32/352,165.28
  6. Step 6: Final answer
    x = 346,436.29

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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.