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Finding the Fourth Proportional to 381,597.06, 526,645.83 and 218,268.90

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Solution

The fourth proportional to 381,597.06, 526,645.83 and 218,268.90 is: 301,235.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,597.06 : 526,645.83 = 218,268.90 : x
  2. Step 2: Convert to fraction form
    381,597.06/526,645.83 = 218,268.90/x
  3. Step 3: Cross multiply
    381,597.06x = 526,645.83 × 218,268.90
  4. Step 4: Simplify right side
    381,597.06x = 114,950,406,003.69
  5. Step 5: Solve for x
    x = 114,950,406,003.69/381,597.06
  6. Step 6: Final answer
    x = 301,235.04

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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.