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Finding the Fourth Proportional to 480.73, 660.53 and 382.32

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Solution

The fourth proportional to 480.73, 660.53 and 382.32 is: 525.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    480.73 : 660.53 = 382.32 : x
  2. Step 2: Convert to fraction form
    480.73/660.53 = 382.32/x
  3. Step 3: Cross multiply
    480.73x = 660.53 × 382.32
  4. Step 4: Simplify right side
    480.73x = 252,530.53
  5. Step 5: Solve for x
    x = 252,530.53/480.73
  6. Step 6: Final answer
    x = 525.31

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Find fourth proportional to 240.37, 330.27 and 191.16
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.