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Finding the Fourth Proportional to 300,676.80, 414,776.67 and 185,918.76

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Solution

The fourth proportional to 300,676.80, 414,776.67 and 185,918.76 is: 256,470.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,676.80 : 414,776.67 = 185,918.76 : x
  2. Step 2: Convert to fraction form
    300,676.80/414,776.67 = 185,918.76/x
  3. Step 3: Cross multiply
    300,676.80x = 414,776.67 × 185,918.76
  4. Step 4: Simplify right side
    300,676.80x = 77,114,764,628.13
  5. Step 5: Solve for x
    x = 77,114,764,628.13/300,676.80
  6. Step 6: Final answer
    x = 256,470.62

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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.