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Finding the Fourth Proportional to 536.60, 804.30 and 228.40

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Solution

The fourth proportional to 536.60, 804.30 and 228.40 is: 342.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    536.60 : 804.30 = 228.40 : x
  2. Step 2: Convert to fraction form
    536.60/804.30 = 228.40/x
  3. Step 3: Cross multiply
    536.60x = 804.30 × 228.40
  4. Step 4: Simplify right side
    536.60x = 183,699.25
  5. Step 5: Solve for x
    x = 183,699.25/536.60
  6. Step 6: Final answer
    x = 342.34

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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.