Home / 281,003.79-421,602.89-162,778.35

Finding the Fourth Proportional to 281,003.79, 421,602.89 and 162,778.35

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Solution

The fourth proportional to 281,003.79, 421,602.89 and 162,778.35 is: 244,223.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,003.79 : 421,602.89 = 162,778.35 : x
  2. Step 2: Convert to fraction form
    281,003.79/421,602.89 = 162,778.35/x
  3. Step 3: Cross multiply
    281,003.79x = 421,602.89 × 162,778.35
  4. Step 4: Simplify right side
    281,003.79x = 68,627,821,975.54
  5. Step 5: Solve for x
    x = 68,627,821,975.54/281,003.79
  6. Step 6: Final answer
    x = 244,223.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.