Home / 321,653.03-481,828.91-153,336.65

Finding the Fourth Proportional to 321,653.03, 481,828.91 and 153,336.65

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Solution

The fourth proportional to 321,653.03, 481,828.91 and 153,336.65 is: 229,694.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,653.03 : 481,828.91 = 153,336.65 : x
  2. Step 2: Convert to fraction form
    321,653.03/481,828.91 = 153,336.65/x
  3. Step 3: Cross multiply
    321,653.03x = 481,828.91 × 153,336.65
  4. Step 4: Simplify right side
    321,653.03x = 73,882,027,756.72
  5. Step 5: Solve for x
    x = 73,882,027,756.72/321,653.03
  6. Step 6: Final answer
    x = 229,694.80

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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.