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Finding the Fourth Proportional to 275,165.10, 384,401.70 and 275,165.10

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Solution

The fourth proportional to 275,165.10, 384,401.70 and 275,165.10 is: 384,401.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,165.10 : 384,401.70 = 275,165.10 : x
  2. Step 2: Convert to fraction form
    275,165.10/384,401.70 = 275,165.10/x
  3. Step 3: Cross multiply
    275,165.10x = 384,401.70 × 275,165.10
  4. Step 4: Simplify right side
    275,165.10x = 105,773,932,220.67
  5. Step 5: Solve for x
    x = 105,773,932,220.67/275,165.10
  6. Step 6: Final answer
    x = 384,401.70

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.