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Finding the Fourth Proportional to 248,887.78, 343,383.87 and 146,878.81

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Solution

The fourth proportional to 248,887.78, 343,383.87 and 146,878.81 is: 202,644.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,887.78 : 343,383.87 = 146,878.81 : x
  2. Step 2: Convert to fraction form
    248,887.78/343,383.87 = 146,878.81/x
  3. Step 3: Cross multiply
    248,887.78x = 343,383.87 × 146,878.81
  4. Step 4: Simplify right side
    248,887.78x = 50,435,814,198.79
  5. Step 5: Solve for x
    x = 50,435,814,198.79/248,887.78
  6. Step 6: Final answer
    x = 202,644.80

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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.