Home / 255,467.88-383,201.74-77,975.72

Finding the Fourth Proportional to 255,467.88, 383,201.74 and 77,975.72

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Solution

The fourth proportional to 255,467.88, 383,201.74 and 77,975.72 is: 116,963.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,467.88 : 383,201.74 = 77,975.72 : x
  2. Step 2: Convert to fraction form
    255,467.88/383,201.74 = 77,975.72/x
  3. Step 3: Cross multiply
    255,467.88x = 383,201.74 × 77,975.72
  4. Step 4: Simplify right side
    255,467.88x = 29,880,431,581.75
  5. Step 5: Solve for x
    x = 29,880,431,581.75/255,467.88
  6. Step 6: Final answer
    x = 116,963.56

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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.