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Finding the Fourth Proportional to 331,210.86, 496,890 and 120,848.73

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Solution

The fourth proportional to 331,210.86, 496,890 and 120,848.73 is: 181,299.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,210.86 : 496,890 = 120,848.73 : x
  2. Step 2: Convert to fraction form
    331,210.86/496,890 = 120,848.73/x
  3. Step 3: Cross multiply
    331,210.86x = 496,890 × 120,848.73
  4. Step 4: Simplify right side
    331,210.86x = 60,048,525,449.70
  5. Step 5: Solve for x
    x = 60,048,525,449.70/331,210.86
  6. Step 6: Final answer
    x = 181,299.99

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1.5x scale

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.