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Finding the Fourth Proportional to 272,352.58, 408,528.90 and 72,673.67

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Solution

The fourth proportional to 272,352.58, 408,528.90 and 72,673.67 is: 109,010.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,352.58 : 408,528.90 = 72,673.67 : x
  2. Step 2: Convert to fraction form
    272,352.58/408,528.90 = 72,673.67/x
  3. Step 3: Cross multiply
    272,352.58x = 408,528.90 × 72,673.67
  4. Step 4: Simplify right side
    272,352.58x = 29,689,295,485.39
  5. Step 5: Solve for x
    x = 29,689,295,485.39/272,352.58
  6. Step 6: Final answer
    x = 109,010.52

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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.