Home / 252,638.48-379,090.56-102,989.36

Finding the Fourth Proportional to 252,638.48, 379,090.56 and 102,989.36

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Solution

The fourth proportional to 252,638.48, 379,090.56 and 102,989.36 is: 154,538.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,638.48 : 379,090.56 = 102,989.36 : x
  2. Step 2: Convert to fraction form
    252,638.48/379,090.56 = 102,989.36/x
  3. Step 3: Cross multiply
    252,638.48x = 379,090.56 × 102,989.36
  4. Step 4: Simplify right side
    252,638.48x = 39,042,294,156.44
  5. Step 5: Solve for x
    x = 39,042,294,156.44/252,638.48
  6. Step 6: Final answer
    x = 154,538.19

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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.