Home / 281,403.02-421,996.82-139,199.48

Finding the Fourth Proportional to 281,403.02, 421,996.82 and 139,199.48

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Solution

The fourth proportional to 281,403.02, 421,996.82 and 139,199.48 is: 208,745.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,403.02 : 421,996.82 = 139,199.48 : x
  2. Step 2: Convert to fraction form
    281,403.02/421,996.82 = 139,199.48/x
  3. Step 3: Cross multiply
    281,403.02x = 421,996.82 × 139,199.48
  4. Step 4: Simplify right side
    281,403.02x = 58,741,737,905.65
  5. Step 5: Solve for x
    x = 58,741,737,905.65/281,403.02
  6. Step 6: Final answer
    x = 208,745.94

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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.