Home / 255,021.42-352,003.68-170,138.28

Finding the Fourth Proportional to 255,021.42, 352,003.68 and 170,138.28

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Solution

The fourth proportional to 255,021.42, 352,003.68 and 170,138.28 is: 234,840.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,021.42 : 352,003.68 = 170,138.28 : x
  2. Step 2: Convert to fraction form
    255,021.42/352,003.68 = 170,138.28/x
  3. Step 3: Cross multiply
    255,021.42x = 352,003.68 × 170,138.28
  4. Step 4: Simplify right side
    255,021.42x = 59,889,300,668.87
  5. Step 5: Solve for x
    x = 59,889,300,668.87/255,021.42
  6. Step 6: Final answer
    x = 234,840.28

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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.