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Finding the Fourth Proportional to 482.57, 723.54 and 204.78

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Solution

The fourth proportional to 482.57, 723.54 and 204.78 is: 307.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    482.57 : 723.54 = 204.78 : x
  2. Step 2: Convert to fraction form
    482.57/723.54 = 204.78/x
  3. Step 3: Cross multiply
    482.57x = 723.54 × 204.78
  4. Step 4: Simplify right side
    482.57x = 148,166.52
  5. Step 5: Solve for x
    x = 148,166.52/482.57
  6. Step 6: Final answer
    x = 307.04

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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.