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Finding the Fourth Proportional to 359,015.56, 538,014.86 and 199,161.35

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Solution

The fourth proportional to 359,015.56, 538,014.86 and 199,161.35 is: 298,459.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,015.56 : 538,014.86 = 199,161.35 : x
  2. Step 2: Convert to fraction form
    359,015.56/538,014.86 = 199,161.35/x
  3. Step 3: Cross multiply
    359,015.56x = 538,014.86 × 199,161.35
  4. Step 4: Simplify right side
    359,015.56x = 107,151,765,837.66
  5. Step 5: Solve for x
    x = 107,151,765,837.66/359,015.56
  6. Step 6: Final answer
    x = 298,459.95

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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.