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Finding the Fourth Proportional to 260,930.09, 391,271.77 and 101,080.90

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Solution

The fourth proportional to 260,930.09, 391,271.77 and 101,080.90 is: 151,573.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,930.09 : 391,271.77 = 101,080.90 : x
  2. Step 2: Convert to fraction form
    260,930.09/391,271.77 = 101,080.90/x
  3. Step 3: Cross multiply
    260,930.09x = 391,271.77 × 101,080.90
  4. Step 4: Simplify right side
    260,930.09x = 39,550,100,699.83
  5. Step 5: Solve for x
    x = 39,550,100,699.83/260,930.09
  6. Step 6: Final answer
    x = 151,573.55

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1.5x scale

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.