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Finding the Fourth Proportional to 536.44, 740.64 and 347.74

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Solution

The fourth proportional to 536.44, 740.64 and 347.74 is: 480.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    536.44 : 740.64 = 347.74 : x
  2. Step 2: Convert to fraction form
    536.44/740.64 = 347.74/x
  3. Step 3: Cross multiply
    536.44x = 740.64 × 347.74
  4. Step 4: Simplify right side
    536.44x = 257,550.15
  5. Step 5: Solve for x
    x = 257,550.15/536.44
  6. Step 6: Final answer
    x = 480.11

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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.