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Finding the Fourth Proportional to 404,800, 558,632.88 and 223,511.44

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Solution

The fourth proportional to 404,800, 558,632.88 and 223,511.44 is: 308,450.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,800 : 558,632.88 = 223,511.44 : x
  2. Step 2: Convert to fraction form
    404,800/558,632.88 = 223,511.44/x
  3. Step 3: Cross multiply
    404,800x = 558,632.88 × 223,511.44
  4. Step 4: Simplify right side
    404,800x = 124,860,839,440.15
  5. Step 5: Solve for x
    x = 124,860,839,440.15/404,800
  6. Step 6: Final answer
    x = 308,450.69

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1.5x scale

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.