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Finding the Fourth Proportional to 275,609.84, 380,363.64 and 154,759.16

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Solution

The fourth proportional to 275,609.84, 380,363.64 and 154,759.16 is: 213,580.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,609.84 : 380,363.64 = 154,759.16 : x
  2. Step 2: Convert to fraction form
    275,609.84/380,363.64 = 154,759.16/x
  3. Step 3: Cross multiply
    275,609.84x = 380,363.64 × 154,759.16
  4. Step 4: Simplify right side
    275,609.84x = 58,864,757,420.94
  5. Step 5: Solve for x
    x = 58,864,757,420.94/275,609.84
  6. Step 6: Final answer
    x = 213,580.03

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1.5x scale

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.