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Finding the Fourth Proportional to 331,152.69, 496,803.11 and 120,790.63

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Solution

The fourth proportional to 331,152.69, 496,803.11 and 120,790.63 is: 181,212.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,152.69 : 496,803.11 = 120,790.63 : x
  2. Step 2: Convert to fraction form
    331,152.69/496,803.11 = 120,790.63/x
  3. Step 3: Cross multiply
    331,152.69x = 496,803.11 × 120,790.63
  4. Step 4: Simplify right side
    331,152.69x = 60,009,157,865.39
  5. Step 5: Solve for x
    x = 60,009,157,865.39/331,152.69
  6. Step 6: Final answer
    x = 181,212.96

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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.