Home / 321,976.90-482,576.55-164,124.10

Finding the Fourth Proportional to 321,976.90, 482,576.55 and 164,124.10

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Solution

The fourth proportional to 321,976.90, 482,576.55 and 164,124.10 is: 245,987.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,976.90 : 482,576.55 = 164,124.10 : x
  2. Step 2: Convert to fraction form
    321,976.90/482,576.55 = 164,124.10/x
  3. Step 3: Cross multiply
    321,976.90x = 482,576.55 × 164,124.10
  4. Step 4: Simplify right side
    321,976.90x = 79,202,441,949.86
  5. Step 5: Solve for x
    x = 79,202,441,949.86/321,976.90
  6. Step 6: Final answer
    x = 245,987.96

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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.