Home / 255,724.35-383,822.87-129,453.21

Finding the Fourth Proportional to 255,724.35, 383,822.87 and 129,453.21

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Solution

The fourth proportional to 255,724.35, 383,822.87 and 129,453.21 is: 194,299.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,724.35 : 383,822.87 = 129,453.21 : x
  2. Step 2: Convert to fraction form
    255,724.35/383,822.87 = 129,453.21/x
  3. Step 3: Cross multiply
    255,724.35x = 383,822.87 × 129,453.21
  4. Step 4: Simplify right side
    255,724.35x = 49,687,101,945.65
  5. Step 5: Solve for x
    x = 49,687,101,945.65/255,724.35
  6. Step 6: Final answer
    x = 194,299.46

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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.