Home / 306,286.07-459,450.99-81,645.35

Finding the Fourth Proportional to 306,286.07, 459,450.99 and 81,645.35

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Solution

The fourth proportional to 306,286.07, 459,450.99 and 81,645.35 is: 122,473.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,286.07 : 459,450.99 = 81,645.35 : x
  2. Step 2: Convert to fraction form
    306,286.07/459,450.99 = 81,645.35/x
  3. Step 3: Cross multiply
    306,286.07x = 459,450.99 × 81,645.35
  4. Step 4: Simplify right side
    306,286.07x = 37,512,036,886.40
  5. Step 5: Solve for x
    x = 37,512,036,886.40/306,286.07
  6. Step 6: Final answer
    x = 122,473.86

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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.