Home / 319,222.20-478,833.30-141,540.60

Finding the Fourth Proportional to 319,222.20, 478,833.30 and 141,540.60

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Solution

The fourth proportional to 319,222.20, 478,833.30 and 141,540.60 is: 212,310.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,222.20 : 478,833.30 = 141,540.60 : x
  2. Step 2: Convert to fraction form
    319,222.20/478,833.30 = 141,540.60/x
  3. Step 3: Cross multiply
    319,222.20x = 478,833.30 × 141,540.60
  4. Step 4: Simplify right side
    319,222.20x = 67,774,352,581.98
  5. Step 5: Solve for x
    x = 67,774,352,581.98/319,222.20
  6. Step 6: Final answer
    x = 212,310.90

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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.