Home / 306,614.20-459,886.27-81,992.15

Finding the Fourth Proportional to 306,614.20, 459,886.27 and 81,992.15

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Solution

The fourth proportional to 306,614.20, 459,886.27 and 81,992.15 is: 122,978.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,614.20 : 459,886.27 = 81,992.15 : x
  2. Step 2: Convert to fraction form
    306,614.20/459,886.27 = 81,992.15/x
  3. Step 3: Cross multiply
    306,614.20x = 459,886.27 × 81,992.15
  4. Step 4: Simplify right side
    306,614.20x = 37,707,064,032.78
  5. Step 5: Solve for x
    x = 37,707,064,032.78/306,614.20
  6. Step 6: Final answer
    x = 122,978.86

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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.