Home / 278,818.14-417,992.10-120,927.67

Finding the Fourth Proportional to 278,818.14, 417,992.10 and 120,927.67

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Solution

The fourth proportional to 278,818.14, 417,992.10 and 120,927.67 is: 181,289.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,818.14 : 417,992.10 = 120,927.67 : x
  2. Step 2: Convert to fraction form
    278,818.14/417,992.10 = 120,927.67/x
  3. Step 3: Cross multiply
    278,818.14x = 417,992.10 × 120,927.67
  4. Step 4: Simplify right side
    278,818.14x = 50,546,810,731.41
  5. Step 5: Solve for x
    x = 50,546,810,731.41/278,818.14
  6. Step 6: Final answer
    x = 181,289.53

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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.