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Finding the Fourth Proportional to 266,997.64, 368,455.39 and 144,489.93

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Solution

The fourth proportional to 266,997.64, 368,455.39 and 144,489.93 is: 199,395.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,997.64 : 368,455.39 = 144,489.93 : x
  2. Step 2: Convert to fraction form
    266,997.64/368,455.39 = 144,489.93/x
  3. Step 3: Cross multiply
    266,997.64x = 368,455.39 × 144,489.93
  4. Step 4: Simplify right side
    266,997.64x = 53,238,093,509.22
  5. Step 5: Solve for x
    x = 53,238,093,509.22/266,997.64
  6. Step 6: Final answer
    x = 199,395.37

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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.