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Finding the Fourth Proportional to 325,371.60, 487,911.60 and 125,625.60

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Solution

The fourth proportional to 325,371.60, 487,911.60 and 125,625.60 is: 188,382.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,371.60 : 487,911.60 = 125,625.60 : x
  2. Step 2: Convert to fraction form
    325,371.60/487,911.60 = 125,625.60/x
  3. Step 3: Cross multiply
    325,371.60x = 487,911.60 × 125,625.60
  4. Step 4: Simplify right side
    325,371.60x = 61,294,187,496.96
  5. Step 5: Solve for x
    x = 61,294,187,496.96/325,371.60
  6. Step 6: Final answer
    x = 188,382.11

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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.