Home / 211,456.56-317,185.38-71,313.60

Finding the Fourth Proportional to 211,456.56, 317,185.38 and 71,313.60

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Solution

The fourth proportional to 211,456.56, 317,185.38 and 71,313.60 is: 106,970.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,456.56 : 317,185.38 = 71,313.60 : x
  2. Step 2: Convert to fraction form
    211,456.56/317,185.38 = 71,313.60/x
  3. Step 3: Cross multiply
    211,456.56x = 317,185.38 × 71,313.60
  4. Step 4: Simplify right side
    211,456.56x = 22,619,631,315.17
  5. Step 5: Solve for x
    x = 22,619,631,315.17/211,456.56
  6. Step 6: Final answer
    x = 106,970.58

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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.