Home / 255,405.48-352,453.86-142,238.76

Finding the Fourth Proportional to 255,405.48, 352,453.86 and 142,238.76

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Solution

The fourth proportional to 255,405.48, 352,453.86 and 142,238.76 is: 196,286.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,405.48 : 352,453.86 = 142,238.76 : x
  2. Step 2: Convert to fraction form
    255,405.48/352,453.86 = 142,238.76/x
  3. Step 3: Cross multiply
    255,405.48x = 352,453.86 × 142,238.76
  4. Step 4: Simplify right side
    255,405.48x = 50,132,600,003.61
  5. Step 5: Solve for x
    x = 50,132,600,003.61/255,405.48
  6. Step 6: Final answer
    x = 196,286.31

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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.