Home / 328,982.88-493,260.48-129,322.80

Finding the Fourth Proportional to 328,982.88, 493,260.48 and 129,322.80

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Solution

The fourth proportional to 328,982.88, 493,260.48 and 129,322.80 is: 193,900.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,982.88 : 493,260.48 = 129,322.80 : x
  2. Step 2: Convert to fraction form
    328,982.88/493,260.48 = 129,322.80/x
  3. Step 3: Cross multiply
    328,982.88x = 493,260.48 × 129,322.80
  4. Step 4: Simplify right side
    328,982.88x = 63,789,826,402.94
  5. Step 5: Solve for x
    x = 63,789,826,402.94/328,982.88
  6. Step 6: Final answer
    x = 193,900.14

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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.