Home / 386,350.50-579,519.59-105,867.75

Finding the Fourth Proportional to 386,350.50, 579,519.59 and 105,867.75

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Solution

The fourth proportional to 386,350.50, 579,519.59 and 105,867.75 is: 158,799.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,350.50 : 579,519.59 = 105,867.75 : x
  2. Step 2: Convert to fraction form
    386,350.50/579,519.59 = 105,867.75/x
  3. Step 3: Cross multiply
    386,350.50x = 579,519.59 × 105,867.75
  4. Step 4: Simplify right side
    386,350.50x = 61,352,435,074.22
  5. Step 5: Solve for x
    x = 61,352,435,074.22/386,350.50
  6. Step 6: Final answer
    x = 158,799.94

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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.