Home / 281,740.48-422,615.36-79,341.46

Finding the Fourth Proportional to 281,740.48, 422,615.36 and 79,341.46

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Solution

The fourth proportional to 281,740.48, 422,615.36 and 79,341.46 is: 119,013.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,740.48 : 422,615.36 = 79,341.46 : x
  2. Step 2: Convert to fraction form
    281,740.48/422,615.36 = 79,341.46/x
  3. Step 3: Cross multiply
    281,740.48x = 422,615.36 × 79,341.46
  4. Step 4: Simplify right side
    281,740.48x = 33,530,919,680.83
  5. Step 5: Solve for x
    x = 33,530,919,680.83/281,740.48
  6. Step 6: Final answer
    x = 119,013.50

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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.