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Finding the Fourth Proportional to 350.68, 482.94 and 318.04

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Solution

The fourth proportional to 350.68, 482.94 and 318.04 is: 437.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    350.68 : 482.94 = 318.04 : x
  2. Step 2: Convert to fraction form
    350.68/482.94 = 318.04/x
  3. Step 3: Cross multiply
    350.68x = 482.94 × 318.04
  4. Step 4: Simplify right side
    350.68x = 153,594.24
  5. Step 5: Solve for x
    x = 153,594.24/350.68
  6. Step 6: Final answer
    x = 437.99

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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.