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Finding the Fourth Proportional to 275,069.90, 379,635.32 and 152,589.69

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Solution

The fourth proportional to 275,069.90, 379,635.32 and 152,589.69 is: 210,595.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,069.90 : 379,635.32 = 152,589.69 : x
  2. Step 2: Convert to fraction form
    275,069.90/379,635.32 = 152,589.69/x
  3. Step 3: Cross multiply
    275,069.90x = 379,635.32 × 152,589.69
  4. Step 4: Simplify right side
    275,069.90x = 57,928,436,173.33
  5. Step 5: Solve for x
    x = 57,928,436,173.33/275,069.90
  6. Step 6: Final answer
    x = 210,595.33

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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.