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Finding the Fourth Proportional to 300,116.79, 449,675.42 and 211,183.45

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Solution

The fourth proportional to 300,116.79, 449,675.42 and 211,183.45 is: 316,423.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,116.79 : 449,675.42 = 211,183.45 : x
  2. Step 2: Convert to fraction form
    300,116.79/449,675.42 = 211,183.45/x
  3. Step 3: Cross multiply
    300,116.79x = 449,675.42 × 211,183.45
  4. Step 4: Simplify right side
    300,116.79x = 94,964,004,395.69
  5. Step 5: Solve for x
    x = 94,964,004,395.69/300,116.79
  6. Step 6: Final answer
    x = 316,423.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.