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Finding the Fourth Proportional to 325,071.96, 487,629.81 and 125,394

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Solution

The fourth proportional to 325,071.96, 487,629.81 and 125,394 is: 188,099.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,071.96 : 487,629.81 = 125,394 : x
  2. Step 2: Convert to fraction form
    325,071.96/487,629.81 = 125,394/x
  3. Step 3: Cross multiply
    325,071.96x = 487,629.81 × 125,394
  4. Step 4: Simplify right side
    325,071.96x = 61,145,852,395.14
  5. Step 5: Solve for x
    x = 61,145,852,395.14/325,071.96
  6. Step 6: Final answer
    x = 188,099.44

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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.