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Finding the Fourth Proportional to 266,561.58, 399,908.01 and 187,829.58

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Solution

The fourth proportional to 266,561.58, 399,908.01 and 187,829.58 is: 281,790.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,561.58 : 399,908.01 = 187,829.58 : x
  2. Step 2: Convert to fraction form
    266,561.58/399,908.01 = 187,829.58/x
  3. Step 3: Cross multiply
    266,561.58x = 399,908.01 × 187,829.58
  4. Step 4: Simplify right side
    266,561.58x = 75,114,553,556.94
  5. Step 5: Solve for x
    x = 75,114,553,556.94/266,561.58
  6. Step 6: Final answer
    x = 281,790.62

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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.