Home / 307,828.58-461,905.07-218,448.52

Finding the Fourth Proportional to 307,828.58, 461,905.07 and 218,448.52

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Solution

The fourth proportional to 307,828.58, 461,905.07 and 218,448.52 is: 327,787.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,828.58 : 461,905.07 = 218,448.52 : x
  2. Step 2: Convert to fraction form
    307,828.58/461,905.07 = 218,448.52/x
  3. Step 3: Cross multiply
    307,828.58x = 461,905.07 × 218,448.52
  4. Step 4: Simplify right side
    307,828.58x = 100,902,476,674.99
  5. Step 5: Solve for x
    x = 100,902,476,674.99/307,828.58
  6. Step 6: Final answer
    x = 327,787.88

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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.