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Finding the Fourth Proportional to 303,879.94, 455,820.24 and 79,240.18

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Solution

The fourth proportional to 303,879.94, 455,820.24 and 79,240.18 is: 118,860.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,879.94 : 455,820.24 = 79,240.18 : x
  2. Step 2: Convert to fraction form
    303,879.94/455,820.24 = 79,240.18/x
  3. Step 3: Cross multiply
    303,879.94x = 455,820.24 × 79,240.18
  4. Step 4: Simplify right side
    303,879.94x = 36,119,277,865.24
  5. Step 5: Solve for x
    x = 36,119,277,865.24/303,879.94
  6. Step 6: Final answer
    x = 118,860.36

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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.