Home / 457,136.91-685,814.85-190,749.24

Finding the Fourth Proportional to 457,136.91, 685,814.85 and 190,749.24

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Solution

The fourth proportional to 457,136.91, 685,814.85 and 190,749.24 is: 286,169.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,136.91 : 685,814.85 = 190,749.24 : x
  2. Step 2: Convert to fraction form
    457,136.91/685,814.85 = 190,749.24/x
  3. Step 3: Cross multiply
    457,136.91x = 685,814.85 × 190,749.24
  4. Step 4: Simplify right side
    457,136.91x = 130,818,661,418.21
  5. Step 5: Solve for x
    x = 130,818,661,418.21/457,136.91
  6. Step 6: Final answer
    x = 286,169.54

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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.