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Finding the Fourth Proportional to 275,537.76, 380,241.96 and 154,679.28

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Solution

The fourth proportional to 275,537.76, 380,241.96 and 154,679.28 is: 213,457.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,537.76 : 380,241.96 = 154,679.28 : x
  2. Step 2: Convert to fraction form
    275,537.76/380,241.96 = 154,679.28/x
  3. Step 3: Cross multiply
    275,537.76x = 380,241.96 × 154,679.28
  4. Step 4: Simplify right side
    275,537.76x = 58,815,552,598.59
  5. Step 5: Solve for x
    x = 58,815,552,598.59/275,537.76
  6. Step 6: Final answer
    x = 213,457.32

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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.