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Finding the Fourth Proportional to 434.64, 651.87 and 160.73

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Solution

The fourth proportional to 434.64, 651.87 and 160.73 is: 241.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    434.64 : 651.87 = 160.73 : x
  2. Step 2: Convert to fraction form
    434.64/651.87 = 160.73/x
  3. Step 3: Cross multiply
    434.64x = 651.87 × 160.73
  4. Step 4: Simplify right side
    434.64x = 104,771.81
  5. Step 5: Solve for x
    x = 104,771.81/434.64
  6. Step 6: Final answer
    x = 241.05

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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.