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Finding the Fourth Proportional to 242,855.21, 364,062.27 and 84,997.55

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Solution

The fourth proportional to 242,855.21, 364,062.27 and 84,997.55 is: 127,419.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,855.21 : 364,062.27 = 84,997.55 : x
  2. Step 2: Convert to fraction form
    242,855.21/364,062.27 = 84,997.55/x
  3. Step 3: Cross multiply
    242,855.21x = 364,062.27 × 84,997.55
  4. Step 4: Simplify right side
    242,855.21x = 30,944,400,997.44
  5. Step 5: Solve for x
    x = 30,944,400,997.44/242,855.21
  6. Step 6: Final answer
    x = 127,419.14

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1.5x scale

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.