Home / 307,780.90-461,648.30-108,103.04

Finding the Fourth Proportional to 307,780.90, 461,648.30 and 108,103.04

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Solution

The fourth proportional to 307,780.90, 461,648.30 and 108,103.04 is: 162,146.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,780.90 : 461,648.30 = 108,103.04 : x
  2. Step 2: Convert to fraction form
    307,780.90/461,648.30 = 108,103.04/x
  3. Step 3: Cross multiply
    307,780.90x = 461,648.30 × 108,103.04
  4. Step 4: Simplify right side
    307,780.90x = 49,905,583,523.26
  5. Step 5: Solve for x
    x = 49,905,583,523.26/307,780.90
  6. Step 6: Final answer
    x = 162,146.46

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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.