Home / 281,669.22-422,504.55-71,307.18

Finding the Fourth Proportional to 281,669.22, 422,504.55 and 71,307.18

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Solution

The fourth proportional to 281,669.22, 422,504.55 and 71,307.18 is: 106,960.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,669.22 : 422,504.55 = 71,307.18 : x
  2. Step 2: Convert to fraction form
    281,669.22/422,504.55 = 71,307.18/x
  3. Step 3: Cross multiply
    281,669.22x = 422,504.55 × 71,307.18
  4. Step 4: Simplify right side
    281,669.22x = 30,127,607,997.67
  5. Step 5: Solve for x
    x = 30,127,607,997.67/281,669.22
  6. Step 6: Final answer
    x = 106,960.95

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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.