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Finding the Fourth Proportional to 483.60, 724.84 and 240.28

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Solution

The fourth proportional to 483.60, 724.84 and 240.28 is: 360.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    483.60 : 724.84 = 240.28 : x
  2. Step 2: Convert to fraction form
    483.60/724.84 = 240.28/x
  3. Step 3: Cross multiply
    483.60x = 724.84 × 240.28
  4. Step 4: Simplify right side
    483.60x = 174,164.56
  5. Step 5: Solve for x
    x = 174,164.56/483.60
  6. Step 6: Final answer
    x = 360.14

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1.5x scale

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.