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Finding the Fourth Proportional to 558.68, 838.26 and 302.36

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Solution

The fourth proportional to 558.68, 838.26 and 302.36 is: 453.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    558.68 : 838.26 = 302.36 : x
  2. Step 2: Convert to fraction form
    558.68/838.26 = 302.36/x
  3. Step 3: Cross multiply
    558.68x = 838.26 × 302.36
  4. Step 4: Simplify right side
    558.68x = 253,456.29
  5. Step 5: Solve for x
    x = 253,456.29/558.68
  6. Step 6: Final answer
    x = 453.67

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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.