Home / 281,206.41-421,853.60-91,622.77

Finding the Fourth Proportional to 281,206.41, 421,853.60 and 91,622.77

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Solution

The fourth proportional to 281,206.41, 421,853.60 and 91,622.77 is: 137,448.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,206.41 : 421,853.60 = 91,622.77 : x
  2. Step 2: Convert to fraction form
    281,206.41/421,853.60 = 91,622.77/x
  3. Step 3: Cross multiply
    281,206.41x = 421,853.60 × 91,622.77
  4. Step 4: Simplify right side
    281,206.41x = 38,651,394,540.89
  5. Step 5: Solve for x
    x = 38,651,394,540.89/281,206.41
  6. Step 6: Final answer
    x = 137,448.48

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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.