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Finding the Fourth Proportional to 266,014.14, 399,017.00 and 123,779.87

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Solution

The fourth proportional to 266,014.14, 399,017.00 and 123,779.87 is: 185,667.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,014.14 : 399,017.00 = 123,779.87 : x
  2. Step 2: Convert to fraction form
    266,014.14/399,017.00 = 123,779.87/x
  3. Step 3: Cross multiply
    266,014.14x = 399,017.00 × 123,779.87
  4. Step 4: Simplify right side
    266,014.14x = 49,390,269,773.81
  5. Step 5: Solve for x
    x = 49,390,269,773.81/266,014.14
  6. Step 6: Final answer
    x = 185,667.84

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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.