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Finding the Fourth Proportional to 483.01, 724.55 and 190.58

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Solution

The fourth proportional to 483.01, 724.55 and 190.58 is: 285.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    483.01 : 724.55 = 190.58 : x
  2. Step 2: Convert to fraction form
    483.01/724.55 = 190.58/x
  3. Step 3: Cross multiply
    483.01x = 724.55 × 190.58
  4. Step 4: Simplify right side
    483.01x = 138,080.16
  5. Step 5: Solve for x
    x = 138,080.16/483.01
  6. Step 6: Final answer
    x = 285.88

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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.