Home / 242,405.12-363,624.24-82,415.92

Finding the Fourth Proportional to 242,405.12, 363,624.24 and 82,415.92

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Solution

The fourth proportional to 242,405.12, 363,624.24 and 82,415.92 is: 123,629.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,405.12 : 363,624.24 = 82,415.92 : x
  2. Step 2: Convert to fraction form
    242,405.12/363,624.24 = 82,415.92/x
  3. Step 3: Cross multiply
    242,405.12x = 363,624.24 × 82,415.92
  4. Step 4: Simplify right side
    242,405.12x = 29,968,426,273.90
  5. Step 5: Solve for x
    x = 29,968,426,273.90/242,405.12
  6. Step 6: Final answer
    x = 123,629.51

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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.