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Finding the Fourth Proportional to 245,867, 368,887.98 and 121,295.48

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Solution

The fourth proportional to 245,867, 368,887.98 and 121,295.48 is: 181,986.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,867 : 368,887.98 = 121,295.48 : x
  2. Step 2: Convert to fraction form
    245,867/368,887.98 = 121,295.48/x
  3. Step 3: Cross multiply
    245,867x = 368,887.98 × 121,295.48
  4. Step 4: Simplify right side
    245,867x = 44,744,444,600.33
  5. Step 5: Solve for x
    x = 44,744,444,600.33/245,867
  6. Step 6: Final answer
    x = 181,986.38

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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.