Home / 290,982.72-401,524.80-163,631.28

Finding the Fourth Proportional to 290,982.72, 401,524.80 and 163,631.28

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Solution

The fourth proportional to 290,982.72, 401,524.80 and 163,631.28 is: 225,793.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,982.72 : 401,524.80 = 163,631.28 : x
  2. Step 2: Convert to fraction form
    290,982.72/401,524.80 = 163,631.28/x
  3. Step 3: Cross multiply
    290,982.72x = 401,524.80 × 163,631.28
  4. Step 4: Simplify right side
    290,982.72x = 65,702,016,975.74
  5. Step 5: Solve for x
    x = 65,702,016,975.74/290,982.72
  6. Step 6: Final answer
    x = 225,793.54

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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.