Home / 213,609.36-320,133.75-157,185.27

Finding the Fourth Proportional to 213,609.36, 320,133.75 and 157,185.27

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Solution

The fourth proportional to 213,609.36, 320,133.75 and 157,185.27 is: 235,571.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,609.36 : 320,133.75 = 157,185.27 : x
  2. Step 2: Convert to fraction form
    213,609.36/320,133.75 = 157,185.27/x
  3. Step 3: Cross multiply
    213,609.36x = 320,133.75 × 157,185.27
  4. Step 4: Simplify right side
    213,609.36x = 50,320,309,929.86
  5. Step 5: Solve for x
    x = 50,320,309,929.86/213,609.36
  6. Step 6: Final answer
    x = 235,571.65

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1.5x scale

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.