Home / 255,839.25-383,847.36-87,478.08

Finding the Fourth Proportional to 255,839.25, 383,847.36 and 87,478.08

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Solution

The fourth proportional to 255,839.25, 383,847.36 and 87,478.08 is: 131,247.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,839.25 : 383,847.36 = 87,478.08 : x
  2. Step 2: Convert to fraction form
    255,839.25/383,847.36 = 87,478.08/x
  3. Step 3: Cross multiply
    255,839.25x = 383,847.36 × 87,478.08
  4. Step 4: Simplify right side
    255,839.25x = 33,578,230,065.87
  5. Step 5: Solve for x
    x = 33,578,230,065.87/255,839.25
  6. Step 6: Final answer
    x = 131,247.38

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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.