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Finding the Fourth Proportional to 1,142.86, 1,714.35 and 362.94

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Solution

The fourth proportional to 1,142.86, 1,714.35 and 362.94 is: 544.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,142.86 : 1,714.35 = 362.94 : x
  2. Step 2: Convert to fraction form
    1,142.86/1,714.35 = 362.94/x
  3. Step 3: Cross multiply
    1,142.86x = 1,714.35 × 362.94
  4. Step 4: Simplify right side
    1,142.86x = 622,204.37
  5. Step 5: Solve for x
    x = 622,204.37/1,142.86
  6. Step 6: Final answer
    x = 544.43

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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.