Home / 321,928.56-482,902.00-85,271.27

Finding the Fourth Proportional to 321,928.56, 482,902.00 and 85,271.27

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Solution

The fourth proportional to 321,928.56, 482,902.00 and 85,271.27 is: 127,909.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,928.56 : 482,902.00 = 85,271.27 : x
  2. Step 2: Convert to fraction form
    321,928.56/482,902.00 = 85,271.27/x
  3. Step 3: Cross multiply
    321,928.56x = 482,902.00 × 85,271.27
  4. Step 4: Simplify right side
    321,928.56x = 41,177,664,197.85
  5. Step 5: Solve for x
    x = 41,177,664,197.85/321,928.56
  6. Step 6: Final answer
    x = 127,909.32

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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.