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Finding the Fourth Proportional to 363,611.60, 545,676.60 and 205,672.40

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Solution

The fourth proportional to 363,611.60, 545,676.60 and 205,672.40 is: 308,655.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,611.60 : 545,676.60 = 205,672.40 : x
  2. Step 2: Convert to fraction form
    363,611.60/545,676.60 = 205,672.40/x
  3. Step 3: Cross multiply
    363,611.60x = 545,676.60 × 205,672.40
  4. Step 4: Simplify right side
    363,611.60x = 112,230,615,945.84
  5. Step 5: Solve for x
    x = 112,230,615,945.84/363,611.60
  6. Step 6: Final answer
    x = 308,655.21

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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.