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Finding the Fourth Proportional to 442.73, 610.93 and 253.68

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Solution

The fourth proportional to 442.73, 610.93 and 253.68 is: 350.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    442.73 : 610.93 = 253.68 : x
  2. Step 2: Convert to fraction form
    442.73/610.93 = 253.68/x
  3. Step 3: Cross multiply
    442.73x = 610.93 × 253.68
  4. Step 4: Simplify right side
    442.73x = 154,980.09
  5. Step 5: Solve for x
    x = 154,980.09/442.73
  6. Step 6: Final answer
    x = 350.05

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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.