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Finding the Fourth Proportional to 483.18, 723.69 and 346.38

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Solution

The fourth proportional to 483.18, 723.69 and 346.38 is: 518.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    483.18 : 723.69 = 346.38 : x
  2. Step 2: Convert to fraction form
    483.18/723.69 = 346.38/x
  3. Step 3: Cross multiply
    483.18x = 723.69 × 346.38
  4. Step 4: Simplify right side
    483.18x = 250,671.74
  5. Step 5: Solve for x
    x = 250,671.74/483.18
  6. Step 6: Final answer
    x = 518.80

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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.