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Finding the Fourth Proportional to 451,631, 623,347.98 and 270,383.38

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Solution

The fourth proportional to 451,631, 623,347.98 and 270,383.38 is: 373,187.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,631 : 623,347.98 = 270,383.38 : x
  2. Step 2: Convert to fraction form
    451,631/623,347.98 = 270,383.38/x
  3. Step 3: Cross multiply
    451,631x = 623,347.98 × 270,383.38
  4. Step 4: Simplify right side
    451,631x = 168,542,933,748.57
  5. Step 5: Solve for x
    x = 168,542,933,748.57/451,631
  6. Step 6: Final answer
    x = 373,187.26

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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.