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Finding the Fourth Proportional to 483.19, 724.81 and 277.70

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Solution

The fourth proportional to 483.19, 724.81 and 277.70 is: 416.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    483.19 : 724.81 = 277.70 : x
  2. Step 2: Convert to fraction form
    483.19/724.81 = 277.70/x
  3. Step 3: Cross multiply
    483.19x = 724.81 × 277.70
  4. Step 4: Simplify right side
    483.19x = 201,279.74
  5. Step 5: Solve for x
    x = 201,279.74/483.19
  6. Step 6: Final answer
    x = 416.56

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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.