Home / 266,619.55-399,486.43-187,567.69

Finding the Fourth Proportional to 266,619.55, 399,486.43 and 187,567.69

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Solution

The fourth proportional to 266,619.55, 399,486.43 and 187,567.69 is: 281,039.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,619.55 : 399,486.43 = 187,567.69 : x
  2. Step 2: Convert to fraction form
    266,619.55/399,486.43 = 187,567.69/x
  3. Step 3: Cross multiply
    266,619.55x = 399,486.43 × 187,567.69
  4. Step 4: Simplify right side
    266,619.55x = 74,930,746,861.45
  5. Step 5: Solve for x
    x = 74,930,746,861.45/266,619.55
  6. Step 6: Final answer
    x = 281,039.96

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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.