Home / 205,340.54-308,012.63-72,221.83

Finding the Fourth Proportional to 205,340.54, 308,012.63 and 72,221.83

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Solution

The fourth proportional to 205,340.54, 308,012.63 and 72,221.83 is: 108,333.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,340.54 : 308,012.63 = 72,221.83 : x
  2. Step 2: Convert to fraction form
    205,340.54/308,012.63 = 72,221.83/x
  3. Step 3: Cross multiply
    205,340.54x = 308,012.63 × 72,221.83
  4. Step 4: Simplify right side
    205,340.54x = 22,245,234,670.57
  5. Step 5: Solve for x
    x = 22,245,234,670.57/205,340.54
  6. Step 6: Final answer
    x = 108,333.38

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1.5x scale

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.