Home / 274,676.48-378,888-161,406.08

Finding the Fourth Proportional to 274,676.48, 378,888 and 161,406.08

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Solution

The fourth proportional to 274,676.48, 378,888 and 161,406.08 is: 222,643.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,676.48 : 378,888 = 161,406.08 : x
  2. Step 2: Convert to fraction form
    274,676.48/378,888 = 161,406.08/x
  3. Step 3: Cross multiply
    274,676.48x = 378,888 × 161,406.08
  4. Step 4: Simplify right side
    274,676.48x = 61,154,826,839.04
  5. Step 5: Solve for x
    x = 61,154,826,839.04/274,676.48
  6. Step 6: Final answer
    x = 222,643.11

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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.