Home / 320,866.56-482,172.21-171,212.58

Finding the Fourth Proportional to 320,866.56, 482,172.21 and 171,212.58

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Solution

The fourth proportional to 320,866.56, 482,172.21 and 171,212.58 is: 257,284.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,866.56 : 482,172.21 = 171,212.58 : x
  2. Step 2: Convert to fraction form
    320,866.56/482,172.21 = 171,212.58/x
  3. Step 3: Cross multiply
    320,866.56x = 482,172.21 × 171,212.58
  4. Step 4: Simplify right side
    320,866.56x = 82,553,948,078.40
  5. Step 5: Solve for x
    x = 82,553,948,078.40/320,866.56
  6. Step 6: Final answer
    x = 257,284.36

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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.