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Finding the Fourth Proportional to 483.47, 723.99 and 346.45

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Solution

The fourth proportional to 483.47, 723.99 and 346.45 is: 518.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    483.47 : 723.99 = 346.45 : x
  2. Step 2: Convert to fraction form
    483.47/723.99 = 346.45/x
  3. Step 3: Cross multiply
    483.47x = 723.99 × 346.45
  4. Step 4: Simplify right side
    483.47x = 250,825.82
  5. Step 5: Solve for x
    x = 250,825.82/483.47
  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.