Home / 328,077.20-492,346.20-141,222.80

Finding the Fourth Proportional to 328,077.20, 492,346.20 and 141,222.80

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Solution

The fourth proportional to 328,077.20, 492,346.20 and 141,222.80 is: 211,933.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,077.20 : 492,346.20 = 141,222.80 : x
  2. Step 2: Convert to fraction form
    328,077.20/492,346.20 = 141,222.80/x
  3. Step 3: Cross multiply
    328,077.20x = 492,346.20 × 141,222.80
  4. Step 4: Simplify right side
    328,077.20x = 69,530,508,933.36
  5. Step 5: Solve for x
    x = 69,530,508,933.36/328,077.20
  6. Step 6: Final answer
    x = 211,933.38

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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.