Home / 321,983.40-482,586.30-164,130.60

Finding the Fourth Proportional to 321,983.40, 482,586.30 and 164,130.60

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Solution

The fourth proportional to 321,983.40, 482,586.30 and 164,130.60 is: 245,997.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,983.40 : 482,586.30 = 164,130.60 : x
  2. Step 2: Convert to fraction form
    321,983.40/482,586.30 = 164,130.60/x
  3. Step 3: Cross multiply
    321,983.40x = 482,586.30 × 164,130.60
  4. Step 4: Simplify right side
    321,983.40x = 79,207,178,970.78
  5. Step 5: Solve for x
    x = 79,207,178,970.78/321,983.40
  6. Step 6: Final answer
    x = 245,997.71

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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.