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Finding the Fourth Proportional to 275,497.60, 380,192.33 and 154,647.63

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Solution

The fourth proportional to 275,497.60, 380,192.33 and 154,647.63 is: 213,416.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,497.60 : 380,192.33 = 154,647.63 : x
  2. Step 2: Convert to fraction form
    275,497.60/380,192.33 = 154,647.63/x
  3. Step 3: Cross multiply
    275,497.60x = 380,192.33 × 154,647.63
  4. Step 4: Simplify right side
    275,497.60x = 58,795,842,778.68
  5. Step 5: Solve for x
    x = 58,795,842,778.68/275,497.60
  6. Step 6: Final answer
    x = 213,416.90

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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.