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Finding the Fourth Proportional to 345,768, 518,652 and 112,296

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Solution

The fourth proportional to 345,768, 518,652 and 112,296 is: 168,444

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,768 : 518,652 = 112,296 : x
  2. Step 2: Convert to fraction form
    345,768/518,652 = 112,296/x
  3. Step 3: Cross multiply
    345,768x = 518,652 × 112,296
  4. Step 4: Simplify right side
    345,768x = 58,242,544,992
  5. Step 5: Solve for x
    x = 58,242,544,992/345,768
  6. Step 6: Final answer
    x = 168,444

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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.