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Finding the Fourth Proportional to 272,814.85, 376,425.11 and 165,411.28

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Solution

The fourth proportional to 272,814.85, 376,425.11 and 165,411.28 is: 228,231.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,814.85 : 376,425.11 = 165,411.28 : x
  2. Step 2: Convert to fraction form
    272,814.85/376,425.11 = 165,411.28/x
  3. Step 3: Cross multiply
    272,814.85x = 376,425.11 × 165,411.28
  4. Step 4: Simplify right side
    272,814.85x = 62,264,959,269.24
  5. Step 5: Solve for x
    x = 62,264,959,269.24/272,814.85
  6. Step 6: Final answer
    x = 228,231.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.