Home / 255,228.22-383,078.62-128,957.33

Finding the Fourth Proportional to 255,228.22, 383,078.62 and 128,957.33

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Solution

The fourth proportional to 255,228.22, 383,078.62 and 128,957.33 is: 193,555.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,228.22 : 383,078.62 = 128,957.33 : x
  2. Step 2: Convert to fraction form
    255,228.22/383,078.62 = 128,957.33/x
  3. Step 3: Cross multiply
    255,228.22x = 383,078.62 × 128,957.33
  4. Step 4: Simplify right side
    255,228.22x = 49,400,796,408.79
  5. Step 5: Solve for x
    x = 49,400,796,408.79/255,228.22
  6. Step 6: Final answer
    x = 193,555.39

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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.