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Finding the Fourth Proportional to 536.32, 739.90 and 326.42

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Solution

The fourth proportional to 536.32, 739.90 and 326.42 is: 450.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    536.32 : 739.90 = 326.42 : x
  2. Step 2: Convert to fraction form
    536.32/739.90 = 326.42/x
  3. Step 3: Cross multiply
    536.32x = 739.90 × 326.42
  4. Step 4: Simplify right side
    536.32x = 241,518.16
  5. Step 5: Solve for x
    x = 241,518.16/536.32
  6. Step 6: Final answer
    x = 450.32

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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.