Home / 274,240.56-378,450.88-153,381.36

Finding the Fourth Proportional to 274,240.56, 378,450.88 and 153,381.36

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Solution

The fourth proportional to 274,240.56, 378,450.88 and 153,381.36 is: 211,665.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,240.56 : 378,450.88 = 153,381.36 : x
  2. Step 2: Convert to fraction form
    274,240.56/378,450.88 = 153,381.36/x
  3. Step 3: Cross multiply
    274,240.56x = 378,450.88 × 153,381.36
  4. Step 4: Simplify right side
    274,240.56x = 58,047,310,667.60
  5. Step 5: Solve for x
    x = 58,047,310,667.60/274,240.56
  6. Step 6: Final answer
    x = 211,665.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.