Home / 274,237.56-378,446.76-153,378.36

Finding the Fourth Proportional to 274,237.56, 378,446.76 and 153,378.36

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Solution

The fourth proportional to 274,237.56, 378,446.76 and 153,378.36 is: 211,661.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,237.56 : 378,446.76 = 153,378.36 : x
  2. Step 2: Convert to fraction form
    274,237.56/378,446.76 = 153,378.36/x
  3. Step 3: Cross multiply
    274,237.56x = 378,446.76 × 153,378.36
  4. Step 4: Simplify right side
    274,237.56x = 58,045,543,396.11
  5. Step 5: Solve for x
    x = 58,045,543,396.11/274,237.56
  6. Step 6: Final answer
    x = 211,661.54

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1.5x scale

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.