Home / 255,440.81-352,519.36-142,263.56

Finding the Fourth Proportional to 255,440.81, 352,519.36 and 142,263.56

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Solution

The fourth proportional to 255,440.81, 352,519.36 and 142,263.56 is: 196,329.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,440.81 : 352,519.36 = 142,263.56 : x
  2. Step 2: Convert to fraction form
    255,440.81/352,519.36 = 142,263.56/x
  3. Step 3: Cross multiply
    255,440.81x = 352,519.36 × 142,263.56
  4. Step 4: Simplify right side
    255,440.81x = 50,150,659,648.16
  5. Step 5: Solve for x
    x = 50,150,659,648.16/255,440.81
  6. Step 6: Final answer
    x = 196,329.86

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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.