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Finding the Fourth Proportional to 404,640.44, 558,403.88 and 223,352.45

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Solution

The fourth proportional to 404,640.44, 558,403.88 and 223,352.45 is: 308,226.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,640.44 : 558,403.88 = 223,352.45 : x
  2. Step 2: Convert to fraction form
    404,640.44/558,403.88 = 223,352.45/x
  3. Step 3: Cross multiply
    404,640.44x = 558,403.88 × 223,352.45
  4. Step 4: Simplify right side
    404,640.44x = 124,720,874,966.75
  5. Step 5: Solve for x
    x = 124,720,874,966.75/404,640.44
  6. Step 6: Final answer
    x = 308,226.42

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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.