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Finding the Fourth Proportional to 246.36, 369.28 and 143.47

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Solution

The fourth proportional to 246.36, 369.28 and 143.47 is: 215.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    246.36 : 369.28 = 143.47 : x
  2. Step 2: Convert to fraction form
    246.36/369.28 = 143.47/x
  3. Step 3: Cross multiply
    246.36x = 369.28 × 143.47
  4. Step 4: Simplify right side
    246.36x = 52,980.60
  5. Step 5: Solve for x
    x = 52,980.60/246.36
  6. Step 6: Final answer
    x = 215.05

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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.