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Finding the Fourth Proportional to 246,455, 340,069.44 and 139,022.28

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Solution

The fourth proportional to 246,455, 340,069.44 and 139,022.28 is: 191,829.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,455 : 340,069.44 = 139,022.28 : x
  2. Step 2: Convert to fraction form
    246,455/340,069.44 = 139,022.28/x
  3. Step 3: Cross multiply
    246,455x = 340,069.44 × 139,022.28
  4. Step 4: Simplify right side
    246,455x = 47,277,228,907.12
  5. Step 5: Solve for x
    x = 47,277,228,907.12/246,455
  6. Step 6: Final answer
    x = 191,829.05

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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.