Home / 386,014.31-579,039.94-186,502.50

Finding the Fourth Proportional to 386,014.31, 579,039.94 and 186,502.50

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Solution

The fourth proportional to 386,014.31, 579,039.94 and 186,502.50 is: 279,762.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,014.31 : 579,039.94 = 186,502.50 : x
  2. Step 2: Convert to fraction form
    386,014.31/579,039.94 = 186,502.50/x
  3. Step 3: Cross multiply
    386,014.31x = 579,039.94 × 186,502.50
  4. Step 4: Simplify right side
    386,014.31x = 107,992,396,642.98
  5. Step 5: Solve for x
    x = 107,992,396,642.98/386,014.31
  6. Step 6: Final answer
    x = 279,762.68

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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.