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Finding the Fourth Proportional to 589.12, 883.68 and 300.64

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Solution

The fourth proportional to 589.12, 883.68 and 300.64 is: 450.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    589.12 : 883.68 = 300.64 : x
  2. Step 2: Convert to fraction form
    589.12/883.68 = 300.64/x
  3. Step 3: Cross multiply
    589.12x = 883.68 × 300.64
  4. Step 4: Simplify right side
    589.12x = 265,669.56
  5. Step 5: Solve for x
    x = 265,669.56/589.12
  6. Step 6: Final answer
    x = 450.96

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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.