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Finding the Fourth Proportional to 275,607.84, 380,360.88 and 154,757.16

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Solution

The fourth proportional to 275,607.84, 380,360.88 and 154,757.16 is: 213,577.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,607.84 : 380,360.88 = 154,757.16 : x
  2. Step 2: Convert to fraction form
    275,607.84/380,360.88 = 154,757.16/x
  3. Step 3: Cross multiply
    275,607.84x = 380,360.88 × 154,757.16
  4. Step 4: Simplify right side
    275,607.84x = 58,863,569,563.90
  5. Step 5: Solve for x
    x = 58,863,569,563.90/275,607.84
  6. Step 6: Final answer
    x = 213,577.27

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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.