Home / 311,811.12-467,498.96-159,712.80

Finding the Fourth Proportional to 311,811.12, 467,498.96 and 159,712.80

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Solution

The fourth proportional to 311,811.12, 467,498.96 and 159,712.80 is: 239,457.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,811.12 : 467,498.96 = 159,712.80 : x
  2. Step 2: Convert to fraction form
    311,811.12/467,498.96 = 159,712.80/x
  3. Step 3: Cross multiply
    311,811.12x = 467,498.96 × 159,712.80
  4. Step 4: Simplify right side
    311,811.12x = 74,665,567,898.69
  5. Step 5: Solve for x
    x = 74,665,567,898.69/311,811.12
  6. Step 6: Final answer
    x = 239,457.68

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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.