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Finding the Fourth Proportional to 279,573.75, 419,370.35 and 92,580.39

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Solution

The fourth proportional to 279,573.75, 419,370.35 and 92,580.39 is: 138,873.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,573.75 : 419,370.35 = 92,580.39 : x
  2. Step 2: Convert to fraction form
    279,573.75/419,370.35 = 92,580.39/x
  3. Step 3: Cross multiply
    279,573.75x = 419,370.35 × 92,580.39
  4. Step 4: Simplify right side
    279,573.75x = 38,825,470,094.53
  5. Step 5: Solve for x
    x = 38,825,470,094.53/279,573.75
  6. Step 6: Final answer
    x = 138,873.80

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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.