Home / 260,106.80-390,324.22-102,314.75

Finding the Fourth Proportional to 260,106.80, 390,324.22 and 102,314.75

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Solution

The fourth proportional to 260,106.80, 390,324.22 and 102,314.75 is: 153,536.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,106.80 : 390,324.22 = 102,314.75 : x
  2. Step 2: Convert to fraction form
    260,106.80/390,324.22 = 102,314.75/x
  3. Step 3: Cross multiply
    260,106.80x = 390,324.22 × 102,314.75
  4. Step 4: Simplify right side
    260,106.80x = 39,935,922,780.84
  5. Step 5: Solve for x
    x = 39,935,922,780.84/260,106.80
  6. Step 6: Final answer
    x = 153,536.64

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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.