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Finding the Fourth Proportional to 536.85, 805.88 and 277.45

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Solution

The fourth proportional to 536.85, 805.88 and 277.45 is: 416.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    536.85 : 805.88 = 277.45 : x
  2. Step 2: Convert to fraction form
    536.85/805.88 = 277.45/x
  3. Step 3: Cross multiply
    536.85x = 805.88 × 277.45
  4. Step 4: Simplify right side
    536.85x = 223,590.08
  5. Step 5: Solve for x
    x = 223,590.08/536.85
  6. Step 6: Final answer
    x = 416.49

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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.