Home / 378,855.18-522,887.94-225,903.24

Finding the Fourth Proportional to 378,855.18, 522,887.94 and 225,903.24

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Solution

The fourth proportional to 378,855.18, 522,887.94 and 225,903.24 is: 311,786.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,855.18 : 522,887.94 = 225,903.24 : x
  2. Step 2: Convert to fraction form
    378,855.18/522,887.94 = 225,903.24/x
  3. Step 3: Cross multiply
    378,855.18x = 522,887.94 × 225,903.24
  4. Step 4: Simplify right side
    378,855.18x = 118,122,079,802.93
  5. Step 5: Solve for x
    x = 118,122,079,802.93/378,855.18
  6. Step 6: Final answer
    x = 311,786.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.