Home / 275,327.05-379,957.18-154,477.07

Finding the Fourth Proportional to 275,327.05, 379,957.18 and 154,477.07

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Solution

The fourth proportional to 275,327.05, 379,957.18 and 154,477.07 is: 213,181.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,327.05 : 379,957.18 = 154,477.07 : x
  2. Step 2: Convert to fraction form
    275,327.05/379,957.18 = 154,477.07/x
  3. Step 3: Cross multiply
    275,327.05x = 379,957.18 × 154,477.07
  4. Step 4: Simplify right side
    275,327.05x = 58,694,671,891.86
  5. Step 5: Solve for x
    x = 58,694,671,891.86/275,327.05
  6. Step 6: Final answer
    x = 213,181.64

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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.