Home / 205,519.36-307,503.87-121,325.33

Finding the Fourth Proportional to 205,519.36, 307,503.87 and 121,325.33

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Solution

The fourth proportional to 205,519.36, 307,503.87 and 121,325.33 is: 181,530.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,519.36 : 307,503.87 = 121,325.33 : x
  2. Step 2: Convert to fraction form
    205,519.36/307,503.87 = 121,325.33/x
  3. Step 3: Cross multiply
    205,519.36x = 307,503.87 × 121,325.33
  4. Step 4: Simplify right side
    205,519.36x = 37,308,006,511.54
  5. Step 5: Solve for x
    x = 37,308,006,511.54/205,519.36
  6. Step 6: Final answer
    x = 181,530.38

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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.