Home / 545,129.20-816,138.60-335,177.20

Finding the Fourth Proportional to 545,129.20, 816,138.60 and 335,177.20

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Solution

The fourth proportional to 545,129.20, 816,138.60 and 335,177.20 is: 501,809.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,129.20 : 816,138.60 = 335,177.20 : x
  2. Step 2: Convert to fraction form
    545,129.20/816,138.60 = 335,177.20/x
  3. Step 3: Cross multiply
    545,129.20x = 816,138.60 × 335,177.20
  4. Step 4: Simplify right side
    545,129.20x = 273,551,050,759.92
  5. Step 5: Solve for x
    x = 273,551,050,759.92/545,129.20
  6. Step 6: Final answer
    x = 501,809.57

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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.