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Finding the Fourth Proportional to 607.63, 911.45 and 174.79

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Solution

The fourth proportional to 607.63, 911.45 and 174.79 is: 262.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    607.63 : 911.45 = 174.79 : x
  2. Step 2: Convert to fraction form
    607.63/911.45 = 174.79/x
  3. Step 3: Cross multiply
    607.63x = 911.45 × 174.79
  4. Step 4: Simplify right side
    607.63x = 159,312.35
  5. Step 5: Solve for x
    x = 159,312.35/607.63
  6. Step 6: Final answer
    x = 262.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.