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Finding the Fourth Proportional to 242,704.55, 363,770.88 and 109,428.77

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Solution

The fourth proportional to 242,704.55, 363,770.88 and 109,428.77 is: 164,014.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,704.55 : 363,770.88 = 109,428.77 : x
  2. Step 2: Convert to fraction form
    242,704.55/363,770.88 = 109,428.77/x
  3. Step 3: Cross multiply
    242,704.55x = 363,770.88 × 109,428.77
  4. Step 4: Simplify right side
    242,704.55x = 39,806,999,960.22
  5. Step 5: Solve for x
    x = 39,806,999,960.22/242,704.55
  6. Step 6: Final answer
    x = 164,014.23

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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.