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Finding the Fourth Proportional to 365.48, 547.04 and 228.64

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Solution

The fourth proportional to 365.48, 547.04 and 228.64 is: 342.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    365.48 : 547.04 = 228.64 : x
  2. Step 2: Convert to fraction form
    365.48/547.04 = 228.64/x
  3. Step 3: Cross multiply
    365.48x = 547.04 × 228.64
  4. Step 4: Simplify right side
    365.48x = 125,075.23
  5. Step 5: Solve for x
    x = 125,075.23/365.48
  6. Step 6: Final answer
    x = 342.22

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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.