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Finding the Fourth Proportional to 461,383.12, 636,310.92 and 300,179.28

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Solution

The fourth proportional to 461,383.12, 636,310.92 and 300,179.28 is: 413,988.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,383.12 : 636,310.92 = 300,179.28 : x
  2. Step 2: Convert to fraction form
    461,383.12/636,310.92 = 300,179.28/x
  3. Step 3: Cross multiply
    461,383.12x = 636,310.92 × 300,179.28
  4. Step 4: Simplify right side
    461,383.12x = 191,007,353,821.74
  5. Step 5: Solve for x
    x = 191,007,353,821.74/461,383.12
  6. Step 6: Final answer
    x = 413,988.60

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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.