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Finding the Fourth Proportional to 536.16, 805.20 and 374.64

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Solution

The fourth proportional to 536.16, 805.20 and 374.64 is: 562.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    536.16 : 805.20 = 374.64 : x
  2. Step 2: Convert to fraction form
    536.16/805.20 = 374.64/x
  3. Step 3: Cross multiply
    536.16x = 805.20 × 374.64
  4. Step 4: Simplify right side
    536.16x = 301,660.13
  5. Step 5: Solve for x
    x = 301,660.13/536.16
  6. Step 6: Final answer
    x = 562.63

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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.