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Finding the Fourth Proportional to 536.17, 738.72 and 465.55

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Solution

The fourth proportional to 536.17, 738.72 and 465.55 is: 641.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    536.17 : 738.72 = 465.55 : x
  2. Step 2: Convert to fraction form
    536.17/738.72 = 465.55/x
  3. Step 3: Cross multiply
    536.17x = 738.72 × 465.55
  4. Step 4: Simplify right side
    536.17x = 343,909.25
  5. Step 5: Solve for x
    x = 343,909.25/536.17
  6. Step 6: Final answer
    x = 641.42

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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.