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Finding the Fourth Proportional to 266,997.47, 368,455.55 and 144,489.60

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Solution

The fourth proportional to 266,997.47, 368,455.55 and 144,489.60 is: 199,395.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,997.47 : 368,455.55 = 144,489.60 : x
  2. Step 2: Convert to fraction form
    266,997.47/368,455.55 = 144,489.60/x
  3. Step 3: Cross multiply
    266,997.47x = 368,455.55 × 144,489.60
  4. Step 4: Simplify right side
    266,997.47x = 53,237,994,314.83
  5. Step 5: Solve for x
    x = 53,237,994,314.83/266,997.47
  6. Step 6: Final answer
    x = 199,395.13

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1.5x scale

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.