Home / 213,388.90-320,015.00-118,664.46

Finding the Fourth Proportional to 213,388.90, 320,015.00 and 118,664.46

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Solution

The fourth proportional to 213,388.90, 320,015.00 and 118,664.46 is: 177,958.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,388.90 : 320,015.00 = 118,664.46 : x
  2. Step 2: Convert to fraction form
    213,388.90/320,015.00 = 118,664.46/x
  3. Step 3: Cross multiply
    213,388.90x = 320,015.00 × 118,664.46
  4. Step 4: Simplify right side
    213,388.90x = 37,974,407,463.56
  5. Step 5: Solve for x
    x = 37,974,407,463.56/213,388.90
  6. Step 6: Final answer
    x = 177,958.68

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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.