Home / 309,862.20-464,793.30-308,112.60

Finding the Fourth Proportional to 309,862.20, 464,793.30 and 308,112.60

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Solution

The fourth proportional to 309,862.20, 464,793.30 and 308,112.60 is: 462,168.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,862.20 : 464,793.30 = 308,112.60 : x
  2. Step 2: Convert to fraction form
    309,862.20/464,793.30 = 308,112.60/x
  3. Step 3: Cross multiply
    309,862.20x = 464,793.30 × 308,112.60
  4. Step 4: Simplify right side
    309,862.20x = 143,208,672,125.58
  5. Step 5: Solve for x
    x = 143,208,672,125.58/309,862.20
  6. Step 6: Final answer
    x = 462,168.90

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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.