Home / 205,558.50-308,377.44-72,443.10

Finding the Fourth Proportional to 205,558.50, 308,377.44 and 72,443.10

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Solution

The fourth proportional to 205,558.50, 308,377.44 and 72,443.10 is: 108,678.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,558.50 : 308,377.44 = 72,443.10 : x
  2. Step 2: Convert to fraction form
    205,558.50/308,377.44 = 72,443.10/x
  3. Step 3: Cross multiply
    205,558.50x = 308,377.44 × 72,443.10
  4. Step 4: Simplify right side
    205,558.50x = 22,339,817,723.66
  5. Step 5: Solve for x
    x = 22,339,817,723.66/205,558.50
  6. Step 6: Final answer
    x = 108,678.64

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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.