Home / 274,047.35-378,184.24-153,188.57

Finding the Fourth Proportional to 274,047.35, 378,184.24 and 153,188.57

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Solution

The fourth proportional to 274,047.35, 378,184.24 and 153,188.57 is: 211,399.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,047.35 : 378,184.24 = 153,188.57 : x
  2. Step 2: Convert to fraction form
    274,047.35/378,184.24 = 153,188.57/x
  3. Step 3: Cross multiply
    274,047.35x = 378,184.24 × 153,188.57
  4. Step 4: Simplify right side
    274,047.35x = 57,933,501,931.80
  5. Step 5: Solve for x
    x = 57,933,501,931.80/274,047.35
  6. Step 6: Final answer
    x = 211,399.61

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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.