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Finding the Fourth Proportional to 260,104.40, 390,167.40 and 82,606.40

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Solution

The fourth proportional to 260,104.40, 390,167.40 and 82,606.40 is: 123,913.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,104.40 : 390,167.40 = 82,606.40 : x
  2. Step 2: Convert to fraction form
    260,104.40/390,167.40 = 82,606.40/x
  3. Step 3: Cross multiply
    260,104.40x = 390,167.40 × 82,606.40
  4. Step 4: Simplify right side
    260,104.40x = 32,230,324,311.36
  5. Step 5: Solve for x
    x = 32,230,324,311.36/260,104.40
  6. Step 6: Final answer
    x = 123,913.03

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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.