Home / 248,876.08-343,457.08-139,999.28

Finding the Fourth Proportional to 248,876.08, 343,457.08 and 139,999.28

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Solution

The fourth proportional to 248,876.08, 343,457.08 and 139,999.28 is: 193,203.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,876.08 : 343,457.08 = 139,999.28 : x
  2. Step 2: Convert to fraction form
    248,876.08/343,457.08 = 139,999.28/x
  3. Step 3: Cross multiply
    248,876.08x = 343,457.08 × 139,999.28
  4. Step 4: Simplify right side
    248,876.08x = 48,083,743,910.90
  5. Step 5: Solve for x
    x = 48,083,743,910.90/248,876.08
  6. Step 6: Final answer
    x = 193,203.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.