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Finding the Fourth Proportional to 404.02, 603.37 and 342.60

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Solution

The fourth proportional to 404.02, 603.37 and 342.60 is: 511.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    404.02 : 603.37 = 342.60 : x
  2. Step 2: Convert to fraction form
    404.02/603.37 = 342.60/x
  3. Step 3: Cross multiply
    404.02x = 603.37 × 342.60
  4. Step 4: Simplify right side
    404.02x = 206,714.56
  5. Step 5: Solve for x
    x = 206,714.56/404.02
  6. Step 6: Final answer
    x = 511.64

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.