Home / 272,288.07-408,129.44-205,511.67

Finding the Fourth Proportional to 272,288.07, 408,129.44 and 205,511.67

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Solution

The fourth proportional to 272,288.07, 408,129.44 and 205,511.67 is: 308,039.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,288.07 : 408,129.44 = 205,511.67 : x
  2. Step 2: Convert to fraction form
    272,288.07/408,129.44 = 205,511.67/x
  3. Step 3: Cross multiply
    272,288.07x = 408,129.44 × 205,511.67
  4. Step 4: Simplify right side
    272,288.07x = 83,875,361,763.01
  5. Step 5: Solve for x
    x = 83,875,361,763.01/272,288.07
  6. Step 6: Final answer
    x = 308,039.06

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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.