Home / 260,948.99-391,312.77-92,511.72

Finding the Fourth Proportional to 260,948.99, 391,312.77 and 92,511.72

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Solution

The fourth proportional to 260,948.99, 391,312.77 and 92,511.72 is: 138,728.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,948.99 : 391,312.77 = 92,511.72 : x
  2. Step 2: Convert to fraction form
    260,948.99/391,312.77 = 92,511.72/x
  3. Step 3: Cross multiply
    260,948.99x = 391,312.77 × 92,511.72
  4. Step 4: Simplify right side
    260,948.99x = 36,201,017,584.12
  5. Step 5: Solve for x
    x = 36,201,017,584.12/260,948.99
  6. Step 6: Final answer
    x = 138,728.33

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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.