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Finding the Fourth Proportional to 497.85, 687.10 and 301.37

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Solution

The fourth proportional to 497.85, 687.10 and 301.37 is: 415.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    497.85 : 687.10 = 301.37 : x
  2. Step 2: Convert to fraction form
    497.85/687.10 = 301.37/x
  3. Step 3: Cross multiply
    497.85x = 687.10 × 301.37
  4. Step 4: Simplify right side
    497.85x = 207,070.36
  5. Step 5: Solve for x
    x = 207,070.36/497.85
  6. Step 6: Final answer
    x = 415.93

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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.