Home / 260,807.45-391,408.20-190,867.19

Finding the Fourth Proportional to 260,807.45, 391,408.20 and 190,867.19

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Solution

The fourth proportional to 260,807.45, 391,408.20 and 190,867.19 is: 286,444.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,807.45 : 391,408.20 = 190,867.19 : x
  2. Step 2: Convert to fraction form
    260,807.45/391,408.20 = 190,867.19/x
  3. Step 3: Cross multiply
    260,807.45x = 391,408.20 × 190,867.19
  4. Step 4: Simplify right side
    260,807.45x = 74,706,981,319.92
  5. Step 5: Solve for x
    x = 74,706,981,319.92/260,807.45
  6. Step 6: Final answer
    x = 286,444.97

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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.