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Finding the Fourth Proportional to 363,999.60, 545,999.40 and 231,139.35

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Solution

The fourth proportional to 363,999.60, 545,999.40 and 231,139.35 is: 346,709.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,999.60 : 545,999.40 = 231,139.35 : x
  2. Step 2: Convert to fraction form
    363,999.60/545,999.40 = 231,139.35/x
  3. Step 3: Cross multiply
    363,999.60x = 545,999.40 × 231,139.35
  4. Step 4: Simplify right side
    363,999.60x = 126,201,946,416.39
  5. Step 5: Solve for x
    x = 126,201,946,416.39/363,999.60
  6. Step 6: Final answer
    x = 346,709.03

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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.