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Finding the Fourth Proportional to 260,687.66, 391,093.91 and 108,800.29

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Solution

The fourth proportional to 260,687.66, 391,093.91 and 108,800.29 is: 163,226.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,687.66 : 391,093.91 = 108,800.29 : x
  2. Step 2: Convert to fraction form
    260,687.66/391,093.91 = 108,800.29/x
  3. Step 3: Cross multiply
    260,687.66x = 391,093.91 × 108,800.29
  4. Step 4: Simplify right side
    260,687.66x = 42,551,130,825.23
  5. Step 5: Solve for x
    x = 42,551,130,825.23/260,687.66
  6. Step 6: Final answer
    x = 163,226.49

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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.