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Finding the Fourth Proportional to 482.07, 720.42 and 358.95

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Solution

The fourth proportional to 482.07, 720.42 and 358.95 is: 536.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    482.07 : 720.42 = 358.95 : x
  2. Step 2: Convert to fraction form
    482.07/720.42 = 358.95/x
  3. Step 3: Cross multiply
    482.07x = 720.42 × 358.95
  4. Step 4: Simplify right side
    482.07x = 258,594.76
  5. Step 5: Solve for x
    x = 258,594.76/482.07
  6. Step 6: Final answer
    x = 536.43

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.