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Finding the Fourth Proportional to 309,009.99, 463,722.75 and 109,329.60

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Solution

The fourth proportional to 309,009.99, 463,722.75 and 109,329.60 is: 164,067.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,009.99 : 463,722.75 = 109,329.60 : x
  2. Step 2: Convert to fraction form
    309,009.99/463,722.75 = 109,329.60/x
  3. Step 3: Cross multiply
    309,009.99x = 463,722.75 × 109,329.60
  4. Step 4: Simplify right side
    309,009.99x = 50,698,622,768.40
  5. Step 5: Solve for x
    x = 50,698,622,768.40/309,009.99
  6. Step 6: Final answer
    x = 164,067.91

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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.