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Finding the Fourth Proportional to 536.55, 740.34 and 453.48

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Solution

The fourth proportional to 536.55, 740.34 and 453.48 is: 625.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    536.55 : 740.34 = 453.48 : x
  2. Step 2: Convert to fraction form
    536.55/740.34 = 453.48/x
  3. Step 3: Cross multiply
    536.55x = 740.34 × 453.48
  4. Step 4: Simplify right side
    536.55x = 335,729.38
  5. Step 5: Solve for x
    x = 335,729.38/536.55
  6. Step 6: Final answer
    x = 625.72

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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.