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Finding the Fourth Proportional to 536.94, 804.84 and 319.86

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Solution

The fourth proportional to 536.94, 804.84 and 319.86 is: 479.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    536.94 : 804.84 = 319.86 : x
  2. Step 2: Convert to fraction form
    536.94/804.84 = 319.86/x
  3. Step 3: Cross multiply
    536.94x = 804.84 × 319.86
  4. Step 4: Simplify right side
    536.94x = 257,436.12
  5. Step 5: Solve for x
    x = 257,436.12/536.94
  6. Step 6: Final answer
    x = 479.45

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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.