Home / 281,493.40-422,267.82-81,815.53

Finding the Fourth Proportional to 281,493.40, 422,267.82 and 81,815.53

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Solution

The fourth proportional to 281,493.40, 422,267.82 and 81,815.53 is: 122,731.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,493.40 : 422,267.82 = 81,815.53 : x
  2. Step 2: Convert to fraction form
    281,493.40/422,267.82 = 81,815.53/x
  3. Step 3: Cross multiply
    281,493.40x = 422,267.82 × 81,815.53
  4. Step 4: Simplify right side
    281,493.40x = 34,548,065,495.24
  5. Step 5: Solve for x
    x = 34,548,065,495.24/281,493.40
  6. Step 6: Final answer
    x = 122,731.35

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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.