Home / 319,167.02-478,766.93-82,511.75

Finding the Fourth Proportional to 319,167.02, 478,766.93 and 82,511.75

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Solution

The fourth proportional to 319,167.02, 478,766.93 and 82,511.75 is: 123,771.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,167.02 : 478,766.93 = 82,511.75 : x
  2. Step 2: Convert to fraction form
    319,167.02/478,766.93 = 82,511.75/x
  3. Step 3: Cross multiply
    319,167.02x = 478,766.93 × 82,511.75
  4. Step 4: Simplify right side
    319,167.02x = 39,503,897,236.43
  5. Step 5: Solve for x
    x = 39,503,897,236.43/319,167.02
  6. Step 6: Final answer
    x = 123,771.86

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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.