Home / 321,986.51-482,964.17-122,291.31

Finding the Fourth Proportional to 321,986.51, 482,964.17 and 122,291.31

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Solution

The fourth proportional to 321,986.51, 482,964.17 and 122,291.31 is: 183,431.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,986.51 : 482,964.17 = 122,291.31 : x
  2. Step 2: Convert to fraction form
    321,986.51/482,964.17 = 122,291.31/x
  3. Step 3: Cross multiply
    321,986.51x = 482,964.17 × 122,291.31
  4. Step 4: Simplify right side
    321,986.51x = 59,062,321,032.36
  5. Step 5: Solve for x
    x = 59,062,321,032.36/321,986.51
  6. Step 6: Final answer
    x = 183,431.04

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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.