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Finding the Fourth Proportional to 260.91, 360 and 150.36

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Solution

The fourth proportional to 260.91, 360 and 150.36 is: 207.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    260.91 : 360 = 150.36 : x
  2. Step 2: Convert to fraction form
    260.91/360 = 150.36/x
  3. Step 3: Cross multiply
    260.91x = 360 × 150.36
  4. Step 4: Simplify right side
    260.91x = 54,129.60
  5. Step 5: Solve for x
    x = 54,129.60/260.91
  6. Step 6: Final answer
    x = 207.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.