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Finding the Fourth Proportional to 266,855.86, 368,200.80 and 159,404.86

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Solution

The fourth proportional to 266,855.86, 368,200.80 and 159,404.86 is: 219,942.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,855.86 : 368,200.80 = 159,404.86 : x
  2. Step 2: Convert to fraction form
    266,855.86/368,200.80 = 159,404.86/x
  3. Step 3: Cross multiply
    266,855.86x = 368,200.80 × 159,404.86
  4. Step 4: Simplify right side
    266,855.86x = 58,692,996,975.89
  5. Step 5: Solve for x
    x = 58,692,996,975.89/266,855.86
  6. Step 6: Final answer
    x = 219,942.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.