Home / 378,725.48-522,168.44-242,535.53

Finding the Fourth Proportional to 378,725.48, 522,168.44 and 242,535.53

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Solution

The fourth proportional to 378,725.48, 522,168.44 and 242,535.53 is: 334,396.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,725.48 : 522,168.44 = 242,535.53 : x
  2. Step 2: Convert to fraction form
    378,725.48/522,168.44 = 242,535.53/x
  3. Step 3: Cross multiply
    378,725.48x = 522,168.44 × 242,535.53
  4. Step 4: Simplify right side
    378,725.48x = 126,644,396,430.66
  5. Step 5: Solve for x
    x = 126,644,396,430.66/378,725.48
  6. Step 6: Final answer
    x = 334,396.29

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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.