Home / 291,139.82-436,450.01-113,605.54

Finding the Fourth Proportional to 291,139.82, 436,450.01 and 113,605.54

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Solution

The fourth proportional to 291,139.82, 436,450.01 and 113,605.54 is: 170,306.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,139.82 : 436,450.01 = 113,605.54 : x
  2. Step 2: Convert to fraction form
    291,139.82/436,450.01 = 113,605.54/x
  3. Step 3: Cross multiply
    291,139.82x = 436,450.01 × 113,605.54
  4. Step 4: Simplify right side
    291,139.82x = 49,583,137,409.90
  5. Step 5: Solve for x
    x = 49,583,137,409.90/291,139.82
  6. Step 6: Final answer
    x = 170,306.96

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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.