Home / 323,743.10-485,614.65-211,768.70

Finding the Fourth Proportional to 323,743.10, 485,614.65 and 211,768.70

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Solution

The fourth proportional to 323,743.10, 485,614.65 and 211,768.70 is: 317,653.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,743.10 : 485,614.65 = 211,768.70 : x
  2. Step 2: Convert to fraction form
    323,743.10/485,614.65 = 211,768.70/x
  3. Step 3: Cross multiply
    323,743.10x = 485,614.65 × 211,768.70
  4. Step 4: Simplify right side
    323,743.10x = 102,837,983,131.46
  5. Step 5: Solve for x
    x = 102,837,983,131.46/323,743.10
  6. Step 6: Final answer
    x = 317,653.05

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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.