Home / 348,415.80-480,823.20-205,149.48

Finding the Fourth Proportional to 348,415.80, 480,823.20 and 205,149.48

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Solution

The fourth proportional to 348,415.80, 480,823.20 and 205,149.48 is: 283,111.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,415.80 : 480,823.20 = 205,149.48 : x
  2. Step 2: Convert to fraction form
    348,415.80/480,823.20 = 205,149.48/x
  3. Step 3: Cross multiply
    348,415.80x = 480,823.20 × 205,149.48
  4. Step 4: Simplify right side
    348,415.80x = 98,640,629,451.94
  5. Step 5: Solve for x
    x = 98,640,629,451.94/348,415.80
  6. Step 6: Final answer
    x = 283,111.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.