Home / 290,256.97-400,518.35-161,177.89

Finding the Fourth Proportional to 290,256.97, 400,518.35 and 161,177.89

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Solution

The fourth proportional to 290,256.97, 400,518.35 and 161,177.89 is: 222,405.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,256.97 : 400,518.35 = 161,177.89 : x
  2. Step 2: Convert to fraction form
    290,256.97/400,518.35 = 161,177.89/x
  3. Step 3: Cross multiply
    290,256.97x = 400,518.35 × 161,177.89
  4. Step 4: Simplify right side
    290,256.97x = 64,554,702,705.84
  5. Step 5: Solve for x
    x = 64,554,702,705.84/290,256.97
  6. Step 6: Final answer
    x = 222,405.35

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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.