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Finding the Fourth Proportional to 353,322.73, 529,987.31 and 100,603.05

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Solution

The fourth proportional to 353,322.73, 529,987.31 and 100,603.05 is: 150,905.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,322.73 : 529,987.31 = 100,603.05 : x
  2. Step 2: Convert to fraction form
    353,322.73/529,987.31 = 100,603.05/x
  3. Step 3: Cross multiply
    353,322.73x = 529,987.31 × 100,603.05
  4. Step 4: Simplify right side
    353,322.73x = 53,318,339,847.30
  5. Step 5: Solve for x
    x = 53,318,339,847.30/353,322.73
  6. Step 6: Final answer
    x = 150,905.49

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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.