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Finding the Fourth Proportional to 242,679.94, 364,184.02 and 84,909.76

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Solution

The fourth proportional to 242,679.94, 364,184.02 and 84,909.76 is: 127,422.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,679.94 : 364,184.02 = 84,909.76 : x
  2. Step 2: Convert to fraction form
    242,679.94/364,184.02 = 84,909.76/x
  3. Step 3: Cross multiply
    242,679.94x = 364,184.02 × 84,909.76
  4. Step 4: Simplify right side
    242,679.94x = 30,922,777,734.04
  5. Step 5: Solve for x
    x = 30,922,777,734.04/242,679.94
  6. Step 6: Final answer
    x = 127,422.06

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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.