Home / 216,434.58-324,642.64-211,366.20

Finding the Fourth Proportional to 216,434.58, 324,642.64 and 211,366.20

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Solution

The fourth proportional to 216,434.58, 324,642.64 and 211,366.20 is: 317,040.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,434.58 : 324,642.64 = 211,366.20 : x
  2. Step 2: Convert to fraction form
    216,434.58/324,642.64 = 211,366.20/x
  3. Step 3: Cross multiply
    216,434.58x = 324,642.64 × 211,366.20
  4. Step 4: Simplify right side
    216,434.58x = 68,618,481,511.65
  5. Step 5: Solve for x
    x = 68,618,481,511.65/216,434.58
  6. Step 6: Final answer
    x = 317,040.29

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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.