Home / 255,932.36-383,921.58-68,939.72

Finding the Fourth Proportional to 255,932.36, 383,921.58 and 68,939.72

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Solution

The fourth proportional to 255,932.36, 383,921.58 and 68,939.72 is: 103,415.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,932.36 : 383,921.58 = 68,939.72 : x
  2. Step 2: Convert to fraction form
    255,932.36/383,921.58 = 68,939.72/x
  3. Step 3: Cross multiply
    255,932.36x = 383,921.58 × 68,939.72
  4. Step 4: Simplify right side
    255,932.36x = 26,467,446,227.16
  5. Step 5: Solve for x
    x = 26,467,446,227.16/255,932.36
  6. Step 6: Final answer
    x = 103,415.79

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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.