Home / 323,515.20-485,488.77-113,153.14

Finding the Fourth Proportional to 323,515.20, 485,488.77 and 113,153.14

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Solution

The fourth proportional to 323,515.20, 485,488.77 and 113,153.14 is: 169,805.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,515.20 : 485,488.77 = 113,153.14 : x
  2. Step 2: Convert to fraction form
    323,515.20/485,488.77 = 113,153.14/x
  3. Step 3: Cross multiply
    323,515.20x = 485,488.77 × 113,153.14
  4. Step 4: Simplify right side
    323,515.20x = 54,934,578,760.24
  5. Step 5: Solve for x
    x = 54,934,578,760.24/323,515.20
  6. Step 6: Final answer
    x = 169,805.25

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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.