Home / 509,736.35-764,441.10-168,103.08

Finding the Fourth Proportional to 509,736.35, 764,441.10 and 168,103.08

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Solution

The fourth proportional to 509,736.35, 764,441.10 and 168,103.08 is: 252,100.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,736.35 : 764,441.10 = 168,103.08 : x
  2. Step 2: Convert to fraction form
    509,736.35/764,441.10 = 168,103.08/x
  3. Step 3: Cross multiply
    509,736.35x = 764,441.10 × 168,103.08
  4. Step 4: Simplify right side
    509,736.35x = 128,504,903,388.59
  5. Step 5: Solve for x
    x = 128,504,903,388.59/509,736.35
  6. Step 6: Final answer
    x = 252,100.72

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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.