Home / 274,238.56-378,448.14-153,379.36

Finding the Fourth Proportional to 274,238.56, 378,448.14 and 153,379.36

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Solution

The fourth proportional to 274,238.56, 378,448.14 and 153,379.36 is: 211,662.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,238.56 : 378,448.14 = 153,379.36 : x
  2. Step 2: Convert to fraction form
    274,238.56/378,448.14 = 153,379.36/x
  3. Step 3: Cross multiply
    274,238.56x = 378,448.14 × 153,379.36
  4. Step 4: Simplify right side
    274,238.56x = 58,046,133,506.39
  5. Step 5: Solve for x
    x = 58,046,133,506.39/274,238.56
  6. Step 6: Final answer
    x = 211,662.92

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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.