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Finding the Fourth Proportional to 203,567.61, 305,040.03 and 108,811.29

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Solution

The fourth proportional to 203,567.61, 305,040.03 and 108,811.29 is: 163,050.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,567.61 : 305,040.03 = 108,811.29 : x
  2. Step 2: Convert to fraction form
    203,567.61/305,040.03 = 108,811.29/x
  3. Step 3: Cross multiply
    203,567.61x = 305,040.03 × 108,811.29
  4. Step 4: Simplify right side
    203,567.61x = 33,191,799,165.94
  5. Step 5: Solve for x
    x = 33,191,799,165.94/203,567.61
  6. Step 6: Final answer
    x = 163,050.49

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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.