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Finding the Fourth Proportional to 497.95, 687.35 and 301.42

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Solution

The fourth proportional to 497.95, 687.35 and 301.42 is: 416.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    497.95 : 687.35 = 301.42 : x
  2. Step 2: Convert to fraction form
    497.95/687.35 = 301.42/x
  3. Step 3: Cross multiply
    497.95x = 687.35 × 301.42
  4. Step 4: Simplify right side
    497.95x = 207,182.65
  5. Step 5: Solve for x
    x = 207,182.65/497.95
  6. Step 6: Final answer
    x = 416.07

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